removed unused variable

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@41121 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/mac/carbon/window.cpp

@@ -201,7 +201,6 @@ static pascal OSStatus wxMacWindowControlEventHandler( EventHandlerCallRef handl
                 RgnHandle updateRgn = NULL ;
                 RgnHandle allocatedRgn = NULL ;
                 wxRegion visRegion = thisWindow->MacGetVisibleRegion() ;
-                Rect controlBounds ;
 
                 if ( cEvent.GetParameter<RgnHandle>(kEventParamRgnHandle, &updateRgn) != noErr )
                 {
@@ -3436,4 +3435,4 @@ bool wxWindowMac::CanSetTransparent()
 wxByte wxWindowMac::GetTransparent() const 
 {
     return m_macAlpha ;
-}
+}