btrfs: remove out_failed label in find_lock_delalloc_range()

There is no point in having the label since all it does is return the
value in the 'found' variable. Instead make every goto return directly
and remove the label.

Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

fs/btrfs/extent_io.c

@@ -440,8 +440,7 @@ again:
 			loops = 1;
 			goto again;
 		} else {
-			found = false;
-			goto out_failed;
+			return false;
 		}
 	}
 
@@ -461,7 +460,7 @@ again:
 	}
 	*start = delalloc_start;
 	*end = delalloc_end;
-out_failed:
+
 	return found;
 }