ext4: remove unnecessary check for APPEND and IMMUTABLE

All the checks IS_APPEND and IS_IMMUTABLE for the fallocate operation on
the inode are done in vfs. No need to do this again in ext4. Remove it.

Signed-off-by: Lukas Czerner <lczerner@redhat.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index f023f0c..e2bba76 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -3541,11 +3541,7 @@
 	}
 
 	mutex_lock(&inode->i_mutex);
-	/* It's not possible punch hole on append only file */
-	if (IS_APPEND(inode) || IS_IMMUTABLE(inode)) {
-		ret = -EPERM;
-		goto out_mutex;
-	}
+
 	if (IS_SWAPFILE(inode)) {
 		ret = -ETXTBSY;
 		goto out_mutex;