panoramix: drop unused XineramaReinitData()

Not used anywhere (also not in drivers), so no need to keep it around
any longer.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>

Xext/panoramiX.c

@@ -418,13 +418,6 @@ XineramaInitData(void)
     }
 }
 
-void
-XineramaReinitData(void)
-{
-    RegionUninit(&PanoramiXScreenRegion);
-    XineramaInitData();
-}
-
 /*
  *	PanoramiXExtensionInit():
  *		Called from InitExtensions in main().

Xext/panoramiXsrv.h

@@ -19,8 +19,6 @@ extern _X_EXPORT Bool
 XineramaRegisterConnectionBlockCallback(void (*func) (void));
 extern _X_EXPORT int XineramaDeleteResource(void *, XID);
 
-extern _X_EXPORT void XineramaReinitData(void);
-
 extern _X_EXPORT RESTYPE XRC_DRAWABLE;
 extern _X_EXPORT RESTYPE XRT_WINDOW;
 extern _X_EXPORT RESTYPE XRT_PIXMAP;