GFS2: Clean up some unused assignments

Cleans up two cases where variables were assigned values but then never
used again.

Signed-off-by: Andrew Price <anprice@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>

fs/gfs2/file.c

@@ -677,10 +677,8 @@ static ssize_t gfs2_file_aio_write(struct kiocb *iocb, const struct iovec *iov,
 	size_t writesize = iov_length(iov, nr_segs);
 	struct dentry *dentry = file->f_dentry;
 	struct gfs2_inode *ip = GFS2_I(dentry->d_inode);
-	struct gfs2_sbd *sdp;
 	int ret;
 
-	sdp = GFS2_SB(file->f_mapping->host);
 	ret = gfs2_rs_alloc(ip);
 	if (ret)
 		return ret;

fs/gfs2/lops.c

@@ -621,7 +621,6 @@ static void revoke_lo_add(struct gfs2_sbd *sdp, struct gfs2_bufdata *bd)
 
 static void revoke_lo_before_commit(struct gfs2_sbd *sdp)
 {
-	struct gfs2_log_descriptor *ld;
 	struct gfs2_meta_header *mh;
 	unsigned int offset;
 	struct list_head *head = &sdp->sd_log_le_revoke;
@@ -634,7 +633,6 @@ static void revoke_lo_before_commit(struct gfs2_sbd *sdp)
 
 	length = gfs2_struct2blk(sdp, sdp->sd_log_num_revoke, sizeof(u64));
 	page = gfs2_get_log_desc(sdp, GFS2_LOG_DESC_REVOKE, length, sdp->sd_log_num_revoke);
-	ld = page_address(page);
 	offset = sizeof(struct gfs2_log_descriptor);
 
 	list_for_each_entry(bd, head, bd_list) {