jbd2: remove unnecessary NULL check before iput()

Signed-off-by: Theodore Ts'o <tytso@mit.edu>
diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c
index e4dc747..56dde1e 100644
--- a/fs/jbd2/journal.c
+++ b/fs/jbd2/journal.c
@@ -1714,8 +1714,7 @@
 
 	if (journal->j_proc_entry)
 		jbd2_stats_proc_exit(journal);
-	if (journal->j_inode)
-		iput(journal->j_inode);
+	iput(journal->j_inode);
 	if (journal->j_revoke)
 		jbd2_journal_destroy_revoke(journal);
 	if (journal->j_chksum_driver)