Compilation fix for wxOSX.

Remove stray closing brace.

Also fix a warning about unused parameter.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@65528 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/osx/uiaction_osx.cpp

@@ -228,7 +228,8 @@ bool wxUIActionSimulator::MouseUp(int button)
     return true;
 }
 
-bool wxUIActionSimulator::DoKey(int keycode, int modifiers, bool isDown)
+bool
+wxUIActionSimulator::DoKey(int keycode, int WXUNUSED(modifiers), bool isDown)
 {
     CGKeyCode cgcode = wxCharCodeWXToOSX((wxKeyCode)keycode);
 
@@ -241,7 +242,5 @@ bool wxUIActionSimulator::DoKey(int keycode, int modifiers, bool isDown)
     return true;
 }
 
-}
-
 #endif // wxUSE_UIACTIONSIMULATOR