Bug 1845623 - Fix windows build because of wrongly-split patch.

MANUAL PUSH: Trivial fix CLOSED TREE

widget/windows/nsNativeThemeWin.cpp

@@ -1852,7 +1852,6 @@ nsresult nsNativeThemeWin::ClassicGetThemePartAndState(
     case StyleAppearance::Tab:
     case StyleAppearance::Tabpanel:
     case StyleAppearance::Tabpanels:
-    case StyleAppearance::Groupbox:
       // these don't use DrawFrameControl
       return NS_OK;
     case StyleAppearance::MozMenulistArrowButton: {