udf: remove redundant variable netype

The variable netype is assigned a value that is never read, the assignment
is redundant the variable can be removed.

Message-Id: <20230105134925.45599-1-colin.i.king@gmail.com>
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Signed-off-by: Jan Kara <jack@suse.cz>

fs/udf/truncate.c

@@ -125,7 +125,7 @@ void udf_discard_prealloc(struct inode *inode)
 	struct kernel_lb_addr eloc;
 	uint32_t elen;
 	uint64_t lbcount = 0;
-	int8_t etype = -1, netype;
+	int8_t etype = -1;
 	struct udf_inode_info *iinfo = UDF_I(inode);
 	int bsize = 1 << inode->i_blkbits;
 
@@ -136,7 +136,7 @@ void udf_discard_prealloc(struct inode *inode)
 	epos.block = iinfo->i_location;
 
 	/* Find the last extent in the file */
-	while ((netype = udf_next_aext(inode, &epos, &eloc, &elen, 0)) != -1) {
+	while (udf_next_aext(inode, &epos, &eloc, &elen, 0) != -1) {
 		brelse(prev_epos.bh);
 		prev_epos = epos;
 		if (prev_epos.bh)