Removed SDL_FILE from source code

(cherry picked from commit a402af506c40ea430d70370486c170d450464973)

src/render/opengl/SDL_render_gl.c

@@ -234,7 +234,7 @@ static bool GL_CheckAllErrors(const char *prefix, SDL_Renderer *renderer, const
 #if 0
 #define GL_CheckError(prefix, renderer)
 #else
-#define GL_CheckError(prefix, renderer) GL_CheckAllErrors(prefix, renderer, SDL_FILE, SDL_LINE, SDL_FUNCTION)
+#define GL_CheckError(prefix, renderer) GL_CheckAllErrors(prefix, renderer, "SDL_render_gl.c", SDL_LINE, SDL_FUNCTION)
 #endif
 
 static bool GL_LoadFunctions(GL_RenderData *data)

src/render/opengles2/SDL_render_gles2.c

@@ -252,7 +252,7 @@ static bool GL_CheckAllErrors(const char *prefix, SDL_Renderer *renderer, const
 #if 0
 #define GL_CheckError(prefix, renderer)
 #else
-#define GL_CheckError(prefix, renderer) GL_CheckAllErrors(prefix, renderer, SDL_FILE, SDL_LINE, SDL_FUNCTION)
+#define GL_CheckError(prefix, renderer) GL_CheckAllErrors(prefix, renderer, "SDL_render_gles2.c", SDL_LINE, SDL_FUNCTION)
 #endif
 
 /*************************************************************************************************