Cleanup: remove unused GPU code.

source/blender/gpu/GPU_extensions.h

@@ -38,9 +38,6 @@ extern "C" {
 
 /* GPU extensions support */
 
-bool GPU_full_non_power_of_two_support(void);
-bool GPU_bicubic_bump_support(void);
-
 int GPU_max_texture_size(void);
 int GPU_max_texture_layers(void);
 int GPU_max_textures(void);

source/blender/gpu/intern/gpu_extensions.c

@@ -265,18 +265,6 @@ void gpu_extensions_exit(void)
 	GPU_invalid_tex_free();
 }
 
-bool GPU_full_non_power_of_two_support(void)
-{
-	/* always supported on full GL but still relevant for OpenGL ES 2.0 where
-	 * NPOT textures can't use mipmaps or repeat wrap mode */
-	return true;
-}
-
-bool GPU_bicubic_bump_support(void)
-{
-	return GLEW_VERSION_4_0 || (GLEW_ARB_texture_query_lod && GLEW_VERSION_3_0);
-}
-
 int GPU_color_depth(void)
 {
 	return GG.colordepth;

source/blender/gpu/intern/gpu_shader.c

@@ -258,9 +258,6 @@ static void gpu_shader_standard_defines(
 	else if (GPU_type_matches(GPU_DEVICE_INTEL, GPU_OS_ANY, GPU_DRIVER_ANY))
 		strcat(defines, "#define GPU_INTEL\n");
 
-	if (GPU_bicubic_bump_support())
-		strcat(defines, "#define BUMP_BICUBIC\n");
-
 #ifdef WITH_OPENSUBDIV
 	/* TODO(sergey): Check whether we actually compiling shader for
 	 * the OpenSubdiv mesh.