Fix the elusive crash that happened in anim mode after resizing the image; Thanks to iLKke again.

git-svn-id: svn://pulkomandy.tk/GrafX2/trunk@1948 416bcca6-2ee7-4201-b75f-2eb2f807beb1

src/pages.c

@@ -932,11 +932,6 @@ int Backup_with_new_dimensions(int width,int height)
   }
   else
   {
-    // Clear the depth buffer anyway, because we may use it later
-    memset(Main_visible_image_depth_buffer.Image, 0,
-      Main_image_width*Main_image_height);
-    
-  
     Update_screen_targets();
   }
   Update_FX_feedback(Config.FX_Feedback);