mysterious OutDevSupport_B2DClip is unused

since maybe...

commit ead04f8f
Author: Philipp Lohmann [pl] <Philipp.Lohmann@Sun.COM>
Date:   Fri Dec 3 16:21:36 2010 +0100

    vcl118: #i115905# improved clip region interface on SAL layer (part 1, windows implementation)

Change-Id: Iaeb49b60f70a9f595b67c7eb307a2e90b58d7150

include/vcl/vclenum.hxx

@@ -81,7 +81,7 @@ enum FontHintStyle { HINT_NONE, HINT_SLIGHT, HINT_MEDIUM, HINT_FULL };
 
 typedef sal_uInt32 sal_UCS4;    // TODO: this should be moved to rtl
 
-enum OutDevSupportType { OutDevSupport_TransparentRect, OutDevSupport_B2DClip, OutDevSupport_B2DDraw };
+enum OutDevSupportType { OutDevSupport_TransparentRect, OutDevSupport_B2DDraw };
 
 struct ItalicMatrix
 {

vcl/headless/svpgdi.cxx

@@ -1380,8 +1380,6 @@ bool SvpSalGraphics::supportsOperation(OutDevSupportType eType) const
         case OutDevSupport_TransparentRect:
         case OutDevSupport_B2DDraw:
             return true;
-        case OutDevSupport_B2DClip: //what's this one ?
-            return false;
     }
     return false;
 }

vcl/quartz/salgdicommon.cxx

@@ -1891,7 +1891,6 @@ bool AquaSalGraphics::supportsOperation( OutDevSupportType eType ) const
     switch( eType )
     {
     case OutDevSupport_TransparentRect:
-    case OutDevSupport_B2DClip:
     case OutDevSupport_B2DDraw:
         bRet = true;
         break;

vcl/win/gdi/salgdi2.cxx

@@ -47,9 +47,6 @@ bool WinSalGraphics::supportsOperation( OutDevSupportType eType ) const
     case OutDevSupport_TransparentRect:
         bRet = mbVirDev || mbWindow;
         break;
-    case OutDevSupport_B2DClip:
-        bRet = true;
-        break;
     case OutDevSupport_B2DDraw:
         bRet = bAllowForTest;
     default: break;