Revert "kdrive: fix "set but not used" warnings"

Partial revert of commit 4149ee8ec0, better
fix coming up.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>

hw/kdrive/fbdev/fbdev.c

@@ -465,6 +465,16 @@ fbdevRandRSetConfig(ScreenPtr pScreen,
     int oldheight;
     int oldmmwidth;
     int oldmmheight;
+    int newwidth, newheight;
+
+    if (screen->randr & (RR_Rotate_0 | RR_Rotate_180)) {
+        newwidth = pSize->width;
+        newheight = pSize->height;
+    }
+    else {
+        newwidth = pSize->height;
+        newheight = pSize->width;
+    }
 
     if (wasEnabled)
         KdDisableScreen(pScreen);