udf: Remove redundant initialization of variable ret

After commit 9293fcf ("udf: Remove struct ustr as non-needed
intermediate storage"), the variable ret is being initialized with
'-ENOMEM' that is meaningless. So remove it.

Link: https://lore.kernel.org/r/20200922081322.70535-1-jingxiangfeng@huawei.com
Signed-off-by: Jing Xiangfeng <jingxiangfeng@huawei.com>
Signed-off-by: Jan Kara <jack@suse.cz>

fs/udf/super.c

@@ -854,7 +854,7 @@ static int udf_load_pvoldesc(struct super_block *sb, sector_t block)
 	uint8_t *outstr;
 	struct buffer_head *bh;
 	uint16_t ident;
-	int ret = -ENOMEM;
+	int ret;
 	struct timestamp *ts;
 
 	outstr = kmalloc(128, GFP_NOFS);