pNFS: Remove spurious wake up in pnfs_layout_remove_lseg()

There is no change to the value of NFS_LAYOUT_RETURN, so we should
not be waking up the RPC call.
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>

fs/nfs/pnfs.c

@@ -420,8 +420,6 @@ static void
 pnfs_layout_remove_lseg(struct pnfs_layout_hdr *lo,
 		struct pnfs_layout_segment *lseg)
 {
-	struct inode *inode = lo->plh_inode;
-
 	WARN_ON(test_bit(NFS_LSEG_VALID, &lseg->pls_flags));
 	list_del_init(&lseg->pls_list);
 	/* Matched by pnfs_get_layout_hdr in pnfs_layout_insert_lseg */
@@ -433,7 +431,6 @@ pnfs_layout_remove_lseg(struct pnfs_layout_hdr *lo,
 			set_bit(NFS_LAYOUT_INVALID_STID, &lo->plh_flags);
 		clear_bit(NFS_LAYOUT_BULK_RECALL, &lo->plh_flags);
 	}
-	rpc_wake_up(&NFS_SERVER(inode)->roc_rpcwaitq);
 }
 
 static bool