f2fs: remove an obsolete variable

BugLink: https://bugs.launchpad.net/bugs/1818797

commit fb58ae22 upstream.

This patch removes an obsolete variable used in add_free_nid.
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
[bwh: Picked as dependency of commit 30a61ddf "f2fs: fix race condition
 in between free nid allocator/initializer"]
Signed-off-by: Ben Hutchings <ben.hutchings@codethink.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Juerg Haefliger <juergh@canonical.com>
Signed-off-by: Khalid Elmously <khalid.elmously@canonical.com>

fs/f2fs/node.c

@@ -1430,7 +1430,6 @@ static int add_free_nid(struct f2fs_sb_info *sbi, nid_t nid, bool build)
 	struct f2fs_nm_info *nm_i = NM_I(sbi);
 	struct free_nid *i;
 	struct nat_entry *ne;
-	bool allocated = false;
 
 	if (!available_free_memory(sbi, FREE_NIDS))
 		return -1;
@@ -1444,8 +1443,6 @@ static int add_free_nid(struct f2fs_sb_info *sbi, nid_t nid, bool build)
 		ne = __lookup_nat_cache(nm_i, nid);
 		if (ne && (!get_nat_flag(ne, IS_CHECKPOINTED) ||
 				nat_get_blkaddr(ne) != NULL_ADDR))
-			allocated = true;
-		if (allocated)
 			return 0;
 	}