Let SDL_Quit() stop the event loop

src/framework/WindowManager.cpp

@@ -336,8 +336,6 @@ void WindowManager::eventLoop()
 			SDL_GL_DeleteContext(m_GLContext);
 			SDL_DestroyWindow(m_Window);
 			SDL_Quit();
-
-			break;
 		}
 		else if (event.type == SDL_KEYDOWN) {
 			switch (event.key.keysym.sym) {