gfs2: Eliminate gfs2_trim_blocks

Function gfs2_trim_blocks is not referenced. Eliminate it.
Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>

fs/gfs2/bmap.c

@@ -2035,14 +2035,6 @@ static int do_shrink(struct inode *inode, u64 newsize)
 	return error;
 }
 
-void gfs2_trim_blocks(struct inode *inode)
-{
-	int ret;
-
-	ret = do_shrink(inode, inode->i_size);
-	WARN_ON(ret != 0);
-}
-
 /**
  * do_grow - Touch and update inode size
  * @inode: The inode

fs/gfs2/bmap.h

@@ -58,7 +58,6 @@ extern int gfs2_get_extent(struct inode *inode, u64 lblock, u64 *dblock,
 extern int gfs2_alloc_extent(struct inode *inode, u64 lblock, u64 *dblock,
 			     unsigned *extlen, bool *new);
 extern int gfs2_setattr_size(struct inode *inode, u64 size);
-extern void gfs2_trim_blocks(struct inode *inode);
 extern int gfs2_truncatei_resume(struct gfs2_inode *ip);
 extern int gfs2_file_dealloc(struct gfs2_inode *ip);
 extern int gfs2_write_alloc_required(struct gfs2_inode *ip, u64 offset,