Irrlicht: Get rid of obsolete setDebugName (#15541)

Co-authored-by: sfan5 <sfan5@live.de>

irr/src/CWGLManager.cpp

@@ -19,9 +19,6 @@ namespace video
 CWGLManager::CWGLManager() :
 		PrimaryContext(SExposedVideoData(0)), PixelFormat(0), libHandle(NULL)
 {
-#ifdef _DEBUG
-	setDebugName("CWGLManager");
-#endif
 	memset(FunctionPointers, 0, sizeof(FunctionPointers));
 }