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diff --git a/thirdparty/bullet/src/LinearMath/btAabbUtil2.h b/thirdparty/bullet/src/LinearMath/btAabbUtil2.h
deleted file mode 100644
index d2997b4e65..0000000000
--- a/thirdparty/bullet/src/LinearMath/btAabbUtil2.h
+++ /dev/null
@@ -1,232 +0,0 @@
-/*
-Copyright (c) 2003-2006 Gino van den Bergen / Erwin Coumans  http://continuousphysics.com/Bullet/
-
-This software is provided 'as-is', without any express or implied warranty.
-In no event will the authors be held liable for any damages arising from the use of this software.
-Permission is granted to anyone to use this software for any purpose, 
-including commercial applications, and to alter it and redistribute it freely, 
-subject to the following restrictions:
-
-1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required.
-2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software.
-3. This notice may not be removed or altered from any source distribution.
-*/
-
-
-
-#ifndef BT_AABB_UTIL2
-#define BT_AABB_UTIL2
-
-#include "btTransform.h"
-#include "btVector3.h"
-#include "btMinMax.h"
-
-
-
-SIMD_FORCE_INLINE void AabbExpand (btVector3& aabbMin,
-								   btVector3& aabbMax,
-								   const btVector3& expansionMin,
-								   const btVector3& expansionMax)
-{
-	aabbMin = aabbMin + expansionMin;
-	aabbMax = aabbMax + expansionMax;
-}
-
-/// conservative test for overlap between two aabbs
-SIMD_FORCE_INLINE bool TestPointAgainstAabb2(const btVector3 &aabbMin1, const btVector3 &aabbMax1,
-								const btVector3 &point)
-{
-	bool overlap = true;
-	overlap = (aabbMin1.getX() > point.getX() || aabbMax1.getX() < point.getX()) ? false : overlap;
-	overlap = (aabbMin1.getZ() > point.getZ() || aabbMax1.getZ() < point.getZ()) ? false : overlap;
-	overlap = (aabbMin1.getY() > point.getY() || aabbMax1.getY() < point.getY()) ? false : overlap;
-	return overlap;
-}
-
-
-/// conservative test for overlap between two aabbs
-SIMD_FORCE_INLINE bool TestAabbAgainstAabb2(const btVector3 &aabbMin1, const btVector3 &aabbMax1,
-								const btVector3 &aabbMin2, const btVector3 &aabbMax2)
-{
-	bool overlap = true;
-	overlap = (aabbMin1.getX() > aabbMax2.getX() || aabbMax1.getX() < aabbMin2.getX()) ? false : overlap;
-	overlap = (aabbMin1.getZ() > aabbMax2.getZ() || aabbMax1.getZ() < aabbMin2.getZ()) ? false : overlap;
-	overlap = (aabbMin1.getY() > aabbMax2.getY() || aabbMax1.getY() < aabbMin2.getY()) ? false : overlap;
-	return overlap;
-}
-
-/// conservative test for overlap between triangle and aabb
-SIMD_FORCE_INLINE bool TestTriangleAgainstAabb2(const btVector3 *vertices,
-									const btVector3 &aabbMin, const btVector3 &aabbMax)
-{
-	const btVector3 &p1 = vertices[0];
-	const btVector3 &p2 = vertices[1];
-	const btVector3 &p3 = vertices[2];
-
-	if (btMin(btMin(p1[0], p2[0]), p3[0]) > aabbMax[0]) return false;
-	if (btMax(btMax(p1[0], p2[0]), p3[0]) < aabbMin[0]) return false;
-
-	if (btMin(btMin(p1[2], p2[2]), p3[2]) > aabbMax[2]) return false;
-	if (btMax(btMax(p1[2], p2[2]), p3[2]) < aabbMin[2]) return false;
-  
-	if (btMin(btMin(p1[1], p2[1]), p3[1]) > aabbMax[1]) return false;
-	if (btMax(btMax(p1[1], p2[1]), p3[1]) < aabbMin[1]) return false;
-	return true;
-}
-
-
-SIMD_FORCE_INLINE int	btOutcode(const btVector3& p,const btVector3& halfExtent) 
-{
-	return (p.getX()  < -halfExtent.getX() ? 0x01 : 0x0) |    
-		   (p.getX() >  halfExtent.getX() ? 0x08 : 0x0) |
-		   (p.getY() < -halfExtent.getY() ? 0x02 : 0x0) |    
-		   (p.getY() >  halfExtent.getY() ? 0x10 : 0x0) |
-		   (p.getZ() < -halfExtent.getZ() ? 0x4 : 0x0) |    
-		   (p.getZ() >  halfExtent.getZ() ? 0x20 : 0x0);
-}
-
-
-
-SIMD_FORCE_INLINE bool btRayAabb2(const btVector3& rayFrom,
-								  const btVector3& rayInvDirection,
-								  const unsigned int raySign[3],
-								  const btVector3 bounds[2],
-								  btScalar& tmin,
-								  btScalar lambda_min,
-								  btScalar lambda_max)
-{
-	btScalar tmax, tymin, tymax, tzmin, tzmax;
-	tmin = (bounds[raySign[0]].getX() - rayFrom.getX()) * rayInvDirection.getX();
-	tmax = (bounds[1-raySign[0]].getX() - rayFrom.getX()) * rayInvDirection.getX();
-	tymin = (bounds[raySign[1]].getY() - rayFrom.getY()) * rayInvDirection.getY();
-	tymax = (bounds[1-raySign[1]].getY() - rayFrom.getY()) * rayInvDirection.getY();
-
-	if ( (tmin > tymax) || (tymin > tmax) )
-		return false;
-
-	if (tymin > tmin)
-		tmin = tymin;
-
-	if (tymax < tmax)
-		tmax = tymax;
-
-	tzmin = (bounds[raySign[2]].getZ() - rayFrom.getZ()) * rayInvDirection.getZ();
-	tzmax = (bounds[1-raySign[2]].getZ() - rayFrom.getZ()) * rayInvDirection.getZ();
-
-	if ( (tmin > tzmax) || (tzmin > tmax) )
-		return false;
-	if (tzmin > tmin)
-		tmin = tzmin;
-	if (tzmax < tmax)
-		tmax = tzmax;
-	return ( (tmin < lambda_max) && (tmax > lambda_min) );
-}
-
-SIMD_FORCE_INLINE bool btRayAabb(const btVector3& rayFrom, 
-								 const btVector3& rayTo, 
-								 const btVector3& aabbMin, 
-								 const btVector3& aabbMax,
-					  btScalar& param, btVector3& normal) 
-{
-	btVector3 aabbHalfExtent = (aabbMax-aabbMin)* btScalar(0.5);
-	btVector3 aabbCenter = (aabbMax+aabbMin)* btScalar(0.5);
-	btVector3	source = rayFrom - aabbCenter;
-	btVector3	target = rayTo - aabbCenter;
-	int	sourceOutcode = btOutcode(source,aabbHalfExtent);
-	int targetOutcode = btOutcode(target,aabbHalfExtent);
-	if ((sourceOutcode & targetOutcode) == 0x0)
-	{
-		btScalar lambda_enter = btScalar(0.0);
-		btScalar lambda_exit  = param;
-		btVector3 r = target - source;
-		int i;
-		btScalar	normSign = 1;
-		btVector3	hitNormal(0,0,0);
-		int bit=1;
-
-		for (int j=0;j<2;j++)
-		{
-			for (i = 0; i != 3; ++i)
-			{
-				if (sourceOutcode & bit)
-				{
-					btScalar lambda = (-source[i] - aabbHalfExtent[i]*normSign) / r[i];
-					if (lambda_enter <= lambda)
-					{
-						lambda_enter = lambda;
-						hitNormal.setValue(0,0,0);
-						hitNormal[i] = normSign;
-					}
-				}
-				else if (targetOutcode & bit) 
-				{
-					btScalar lambda = (-source[i] - aabbHalfExtent[i]*normSign) / r[i];
-					btSetMin(lambda_exit, lambda);
-				}
-				bit<<=1;
-			}
-			normSign = btScalar(-1.);
-		}
-		if (lambda_enter <= lambda_exit)
-		{
-			param = lambda_enter;
-			normal = hitNormal;
-			return true;
-		}
-	}
-	return false;
-}
-
-
-
-SIMD_FORCE_INLINE	void btTransformAabb(const btVector3& halfExtents, btScalar margin,const btTransform& t,btVector3& aabbMinOut,btVector3& aabbMaxOut)
-{
-	btVector3 halfExtentsWithMargin = halfExtents+btVector3(margin,margin,margin);
-	btMatrix3x3 abs_b = t.getBasis().absolute();  
-	btVector3 center = t.getOrigin();
-    btVector3 extent = halfExtentsWithMargin.dot3( abs_b[0], abs_b[1], abs_b[2] );
-	aabbMinOut = center - extent;
-	aabbMaxOut = center + extent;
-}
-
-
-SIMD_FORCE_INLINE	void btTransformAabb(const btVector3& localAabbMin,const btVector3& localAabbMax, btScalar margin,const btTransform& trans,btVector3& aabbMinOut,btVector3& aabbMaxOut)
-{
-		btAssert(localAabbMin.getX() <= localAabbMax.getX());
-		btAssert(localAabbMin.getY() <= localAabbMax.getY());
-		btAssert(localAabbMin.getZ() <= localAabbMax.getZ());
-		btVector3 localHalfExtents = btScalar(0.5)*(localAabbMax-localAabbMin);
-		localHalfExtents+=btVector3(margin,margin,margin);
-
-		btVector3 localCenter = btScalar(0.5)*(localAabbMax+localAabbMin);
-		btMatrix3x3 abs_b = trans.getBasis().absolute();  
-		btVector3 center = trans(localCenter);
-        btVector3 extent = localHalfExtents.dot3( abs_b[0], abs_b[1], abs_b[2] );
-		aabbMinOut = center-extent;
-		aabbMaxOut = center+extent;
-}
-
-#define USE_BANCHLESS 1
-#ifdef USE_BANCHLESS
-	//This block replaces the block below and uses no branches, and replaces the 8 bit return with a 32 bit return for improved performance (~3x on XBox 360)
-	SIMD_FORCE_INLINE unsigned testQuantizedAabbAgainstQuantizedAabb(const unsigned short int* aabbMin1,const unsigned short int* aabbMax1,const unsigned short int* aabbMin2,const unsigned short int* aabbMax2)
-	{		
-		return static_cast<unsigned int>(btSelect((unsigned)((aabbMin1[0] <= aabbMax2[0]) & (aabbMax1[0] >= aabbMin2[0])
-			& (aabbMin1[2] <= aabbMax2[2]) & (aabbMax1[2] >= aabbMin2[2])
-			& (aabbMin1[1] <= aabbMax2[1]) & (aabbMax1[1] >= aabbMin2[1])),
-			1, 0));
-	}
-#else
-	SIMD_FORCE_INLINE bool testQuantizedAabbAgainstQuantizedAabb(const unsigned short int* aabbMin1,const unsigned short int* aabbMax1,const unsigned short int* aabbMin2,const unsigned short int* aabbMax2)
-	{
-		bool overlap = true;
-		overlap = (aabbMin1[0] > aabbMax2[0] || aabbMax1[0] < aabbMin2[0]) ? false : overlap;
-		overlap = (aabbMin1[2] > aabbMax2[2] || aabbMax1[2] < aabbMin2[2]) ? false : overlap;
-		overlap = (aabbMin1[1] > aabbMax2[1] || aabbMax1[1] < aabbMin2[1]) ? false : overlap;
-		return overlap;
-	}
-#endif //USE_BANCHLESS
-
-#endif //BT_AABB_UTIL2
-
-