Remove obsolete GLES2 backend code

This code currently isn't compiled (and cannot compile).

We plan to re-add OpenGL ES-based renderer(s) in Godot 4.0 alongside Vulkan
(probably ES 3.0, possibly also a low-end ES 2.0), but the code will be quite
different so it's not relevant to keep this old Godot 3.2 code.

The `drivers/gles2` code from the `3.2` branch can be used as a reference for
a potential new implementation.

9 files changed, 0 insertions, 20 deletions

diff --git a/platform/android/display_server_android.cpp b/platform/android/display_server_android.cpp
index 235c9ff665..3aa2fb5451 100644
--- a/platform/android/display_server_android.cpp
+++ b/platform/android/display_server_android.cpp
@@ -36,9 +36,6 @@
 #include "java_godot_wrapper.h"
 #include "os_android.h"
 
-#if defined(OPENGL_ENABLED)
-#include "drivers/gles2/rasterizer_gles2.h"
-#endif
 #if defined(VULKAN_ENABLED)
 #include "drivers/vulkan/rendering_device_vulkan.h"
 #include "platform/android/vulkan/vulkan_context_android.h"
diff --git a/platform/iphone/os_iphone.mm b/platform/iphone/os_iphone.mm
index a7366ffdec..d1a69642b1 100644
--- a/platform/iphone/os_iphone.mm
+++ b/platform/iphone/os_iphone.mm
@@ -46,10 +46,6 @@
 #import <UIKit/UIKit.h>
 #import <dlfcn.h>
 
-#if defined(OPENGL_ENABLED)
-#include "drivers/gles2/rasterizer_gles2.h"
-#endif
-
 #if defined(VULKAN_ENABLED)
 #include "servers/rendering/rasterizer_rd/rasterizer_rd.h"
 #import <QuartzCore/CAMetalLayer.h>
diff --git a/platform/iphone/platform_config.h b/platform/iphone/platform_config.h
index bc190ba956..2bbbe47c0d 100644
--- a/platform/iphone/platform_config.h
+++ b/platform/iphone/platform_config.h
@@ -30,8 +30,6 @@
 
 #include <alloca.h>
 
-#define GLES2_INCLUDE_H <ES2/gl.h>
-
 #define PLATFORM_REFCOUNT
 
 #define PTHREAD_RENAME_SELF
diff --git a/platform/linuxbsd/display_server_x11.cpp b/platform/linuxbsd/display_server_x11.cpp
index d35941bdcd..e05d540c50 100644
--- a/platform/linuxbsd/display_server_x11.cpp
+++ b/platform/linuxbsd/display_server_x11.cpp
@@ -39,10 +39,6 @@
 #include "main/main.h"
 #include "scene/resources/texture.h"
 
-#if defined(OPENGL_ENABLED)
-#include "drivers/gles2/rasterizer_gles2.h"
-#endif
-
 #if defined(VULKAN_ENABLED)
 #include "servers/rendering/rasterizer_rd/rasterizer_rd.h"
 #endif
diff --git a/platform/linuxbsd/platform_config.h b/platform/linuxbsd/platform_config.h
index ac30519132..764666681f 100644
--- a/platform/linuxbsd/platform_config.h
+++ b/platform/linuxbsd/platform_config.h
@@ -35,5 +35,3 @@
 #include <stdlib.h>
 #define PTHREAD_BSD_SET_NAME
 #endif
-
-#define GLES2_INCLUDE_H "thirdparty/glad/glad/glad.h"
diff --git a/platform/osx/display_server_osx.mm b/platform/osx/display_server_osx.mm
index 4c04151791..3b82950224 100644
--- a/platform/osx/display_server_osx.mm
+++ b/platform/osx/display_server_osx.mm
@@ -45,7 +45,6 @@
 #include <IOKit/hid/IOHIDLib.h>
 
 #if defined(OPENGL_ENABLED)
-#include "drivers/gles2/rasterizer_gles2.h"
 //TODO - reimplement OpenGLES
 
 #import <AppKit/NSOpenGLView.h>
diff --git a/platform/osx/platform_config.h b/platform/osx/platform_config.h
index 155f37ed55..e657aca955 100644
--- a/platform/osx/platform_config.h
+++ b/platform/osx/platform_config.h
@@ -30,5 +30,4 @@
 
 #include <alloca.h>
 
-#define GLES2_INCLUDE_H "thirdparty/glad/glad/glad.h"
 #define PTHREAD_RENAME_SELF
diff --git a/platform/uwp/os_uwp.cpp b/platform/uwp/os_uwp.cpp
index 1dddb07990..401ba6c35d 100644
--- a/platform/uwp/os_uwp.cpp
+++ b/platform/uwp/os_uwp.cpp
@@ -35,7 +35,6 @@
 
 #include "core/io/marshalls.h"
 #include "core/project_settings.h"
-#include "drivers/gles2/rasterizer_gles2.h"
 #include "drivers/unix/ip_unix.h"
 #include "drivers/windows/dir_access_windows.h"
 #include "drivers/windows/file_access_windows.h"
diff --git a/platform/windows/platform_config.h b/platform/windows/platform_config.h
index 290decac5f..09a16614e0 100644
--- a/platform/windows/platform_config.h
+++ b/platform/windows/platform_config.h
@@ -29,5 +29,3 @@
 /*************************************************************************/
 
 #include <malloc.h>
-
-#define GLES2_INCLUDE_H "thirdparty/glad/glad/glad.h"