pipebuffer: Reapply the mesa_7_7_branch's changes.

After the last mesa_7_7_branch merge the old master code remained,
instead of the newer mesa_7_7_branch's code. This commit makes both
branches match, modulo interface changes.

Note: future mesa_7_7_branch -> master merges will most likely hit
conflicts in these files. Unless otherwise stated, the mesa_7_7_branch
is the reference.

src/gallium/auxiliary/pipebuffer/pb_buffer_fenced.h

@@ -98,43 +98,6 @@ struct pb_fence_ops
 };
 
 
-/**
- * Create a fenced buffer list.
- * 
- * See also fenced_bufmgr_create for a more convenient way to use this.
- */
-struct fenced_buffer_list *
-fenced_buffer_list_create(struct pb_fence_ops *ops);
-
-
-/**
- * Walk the fenced buffer list to check and free signalled buffers.
- */ 
-void
-fenced_buffer_list_check_free(struct fenced_buffer_list *fenced_list, 
-                              int wait);
-
-
-#ifdef DEBUG
-void
-fenced_buffer_list_dump(struct fenced_buffer_list *fenced_list);
-#endif
-
-
-void
-fenced_buffer_list_destroy(struct fenced_buffer_list *fenced_list);
-
-
-/**
- * Wrap a buffer in a fenced buffer.
- * 
- * NOTE: this will not increase the buffer reference count.
- */
-struct pb_buffer *
-fenced_buffer_create(struct fenced_buffer_list *fenced, 
-                     struct pb_buffer *buffer);
-
-
 #ifdef __cplusplus
 }
 #endif