Fix warnings about unused variables [-Wunused-variable]

Fixes the following GCC 5 warnings:
```
drivers/gles2/rasterizer_scene_gles2.cpp:1139:15: warning: unused variable 'offset' [-Wunused-variable]
drivers/gles2/rasterizer_scene_gles2.cpp:1205:39: warning: unused variable 'multi_mesh' [-Wunused-variable]
drivers/gles2/rasterizer_storage_gles2.cpp:359:7: warning: unused variable 'srgb' [-Wunused-variable]
drivers/gles2/shader_gles2.cpp:1016:45: warning: unused variable 'texture_hints' [-Wunused-variable]
editor/animation_track_editor.cpp:776:9: warning: unused variable 'keys_to' [-Wunused-variable]
editor/editor_inspector.cpp:273:7: warning: unused variable 'vs_height' [-Wunused-variable]
editor/editor_themes.cpp:202:10: warning: unused variable 'begin_time' [-Wunused-variable]
editor/editor_themes.cpp:239:10: warning: unused variable 'end_time' [-Wunused-variable]
editor/plugins/animation_blend_tree_editor_plugin.cpp:726:17: warning: unused variable 'an' [-Wunused-variable]
editor/plugins/script_text_editor.cpp:1278:8: warning: unused variable 'fold_state' [-Wunused-variable]
main/main.cpp:132:13: warning: 'use_vsync' defined but not used [-Wunused-variable]
modules/cvtt/image_compress_cvtt.cpp:231:8: warning: unused variable 'y_end' [-Wunused-variable]
modules/cvtt/image_compress_cvtt.cpp:311:6: warning: unused variable 'shift' [-Wunused-variable]
modules/gdscript/gdscript_editor.cpp:58:7: warning: unused variable 'th' [-Wunused-variable]
modules/gridmap/grid_map.cpp:1084:6: warning: unused variable 'ofs' [-Wunused-variable]
modules/theora/video_stream_theora.cpp:442:9: warning: unused variable 'tr' [-Wunused-variable]
modules/visual_script/visual_script_editor.cpp:2606:6: warning: unused variable 'count' [-Wunused-variable]
modules/visual_script/visual_script_editor.cpp:2829:6: warning: unused variable 'seq_count' [-Wunused-variable]
modules/visual_script/visual_script_editor.cpp:2844:24: warning: unused variable 'vnode_function' [-Wunused-variable]
modules/websocket/lws_peer.cpp:122:12: warning: unused variable 'peer_data' [-Wunused-variable]
modules/websocket/lws_peer.cpp:135:12: warning: unused variable 'peer_data' [-Wunused-variable]
modules/websocket/lws_peer.cpp:63:12: warning: unused variable 'peer_data' [-Wunused-variable]
modules/websocket/lws_peer.cpp:91:12: warning: unused variable 'peer_data' [-Wunused-variable]
platform/android/export/export.cpp:763:16: warning: unused variable 'node_size' [-Wunused-variable]
scene/gui/rich_text_label.cpp:850:10: warning: unused variable 'x_ofs' [-Wunused-variable]
scene/gui/text_edit.cpp:653:8: warning: unused variable 'tab_w' [-Wunused-variable]
scene/resources/bit_mask.cpp:186:6: warning: unused variable 'i' [-Wunused-variable]
scene/resources/mesh.cpp:549:20: warning: '_array_name' defined but not used [-Wunused-variable]
servers/audio/audio_rb_resampler.cpp:107:10: warning: unused variable 'v2' [-Wunused-variable]
servers/audio/audio_rb_resampler.cpp:108:10: warning: unused variable 'v3' [-Wunused-variable]
servers/audio/audio_rb_resampler.cpp:109:10: warning: unused variable 'v4' [-Wunused-variable]
servers/audio/audio_rb_resampler.cpp:110:10: warning: unused variable 'v5' [-Wunused-variable]
servers/audio/audio_rb_resampler.cpp:111:10: warning: unused variable 'v0n' [-Wunused-variable]
servers/audio/audio_rb_resampler.cpp:112:10: warning: unused variable 'v1n' [-Wunused-variable]
servers/audio/audio_rb_resampler.cpp:113:10: warning: unused variable 'v2n' [-Wunused-variable]
servers/audio/audio_rb_resampler.cpp:114:10: warning: unused variable 'v3n' [-Wunused-variable]
servers/audio/audio_rb_resampler.cpp:115:10: warning: unused variable 'v4n' [-Wunused-variable]
servers/audio/audio_rb_resampler.cpp:116:10: warning: unused variable 'v5n' [-Wunused-variable]
servers/visual/default_mouse_cursor.xpm:2:21: warning: 'default_mouse_cursor_xpm' defined but not used [-Wunused-variable]
```

1 files changed, 1 insertions, 8 deletions

diff --git a/modules/visual_script/visual_script_editor.cpp b/modules/visual_script/visual_script_editor.cpp
index 4736556d6a..f4e7d9831a 100644
--- a/modules/visual_script/visual_script_editor.cpp
+++ b/modules/visual_script/visual_script_editor.cpp
@@ -2603,7 +2603,6 @@ void VisualScriptEditor::connect_data(Ref<VisualScriptNode> vnode_old, Ref<Visua
 	if (port >= value_count) {
 		port = 0;
 	}
-	int count = vnode_old->get_output_value_port_count() + vnode_old->get_output_sequence_port_count();
 	undo_redo->add_do_method(script.ptr(), "data_connect", edited_func, port_action_node, port, new_id, 0);
 	undo_redo->add_undo_method(script.ptr(), "data_disconnect", edited_func, port_action_node, port, new_id, 0);
 	undo_redo->commit_action();
@@ -2826,7 +2825,6 @@ void VisualScriptEditor::_selected_connect_node(const String &p_text, const Stri
 }
 
 void VisualScriptEditor::connect_seq(Ref<VisualScriptNode> vnode_old, Ref<VisualScriptNode> vnode_new, int new_id) {
-	int seq_count = vnode_old->get_output_sequence_port_count();
 	VisualScriptOperator *vnode_operator = Object::cast_to<VisualScriptOperator>(vnode_new.ptr());
 	if (vnode_operator != NULL && vnode_operator->has_input_sequence_port() == false) {
 		return;
@@ -2841,7 +2839,7 @@ void VisualScriptEditor::connect_seq(Ref<VisualScriptNode> vnode_old, Ref<Visual
 	if (vnode_new->has_input_sequence_port() == false) {
 		return;
 	}
-	VisualScriptFunction *vnode_function = Object::cast_to<VisualScriptFunction>(vnode_old.ptr());
+
 	undo_redo->create_action(TTR("Connect Node Sequence"));
 	int pass_port = -vnode_old->get_output_sequence_port_count() + 1;
 	int return_port = port_action_output - 1;
@@ -3367,11 +3365,6 @@ void VisualScriptEditor::_member_option(int p_option) {
 					undo_redo->add_undo_method(script.ptr(), "data_connect", name, E->get().from_node, E->get().from_port, E->get().to_node, E->get().to_port);
 				}
 
-				/*
-				for(int i=0;i<script->function_get_argument_count(name);i++) {
-					undo_redo->add_undo_method(script.ptr(),"function_add_argument",name,script->function_get_argument_name(name,i),script->function_get_argument_type(name,i));
-				}
-				*/
 				undo_redo->add_do_method(this, "_update_members");
 				undo_redo->add_undo_method(this, "_update_members");
 				undo_redo->add_do_method(this, "_update_graph");