Remove useless check

Author: dstogov

Zend/zend_hash.c

@@ -749,10 +749,7 @@ static zend_always_inline zval *_zend_hash_add_or_update_i(HashTable *ht, zend_s
 
 	IS_CONSISTENT(ht);
 	HT_ASSERT_RC1(ht);
-
-	if (!ZSTR_IS_INTERNED(key)) {
-		zend_string_hash_val(key);
-	}
+	zend_string_hash_val(key);
 
 	if (UNEXPECTED(HT_FLAGS(ht) & (HASH_FLAG_UNINITIALIZED|HASH_FLAG_PACKED))) {
 		if (EXPECTED(HT_FLAGS(ht) & HASH_FLAG_UNINITIALIZED)) {