fixed build with Qt

modules/highgui/src/window_w32.cpp

@@ -581,14 +581,6 @@ double cvGetOpenGlProp_W32(const char* name)
     typedef ptrdiff_t GLsizeiptr;
 #endif
 
-#ifndef GL_BGR
-    #define GL_BGR 0x80E0
-#endif
-
-#ifndef GL_BGRA
-    #define GL_BGRA 0x80E1
-#endif
-
 namespace
 {
     typedef void (APIENTRYP PFNGLGENBUFFERSPROC   ) (GLsizei n, GLuint *buffers);