MFH: Fix #45763 (mysqli::multi_query does not work with mysqlnd)

NEWS

@@ -13,6 +13,7 @@ PHP                                                                        NEWS
 - Fixed a bug causing miscalculations with the "last <weekday> of <n> month"
   relative time string. (Derick)
 
+- Fixed bug #45763 (mysqli::multi_query does not work with mysqlnd). (Johannes)
 - Fixed bug #45757 (FreeBSD4.11 build failure: failed include; stdint.h).
   (Hannes)
 - Fixed bug #45717 (Fileinfo/libmagic build fails, missing err.h and getopt.h).

ext/mysqli/mysqli_nonapi.c

@@ -271,11 +271,7 @@ end:
 
 	MyG(num_links)++;
 
-#if !defined(MYSQLI_USE_MYSQLND)
 	mysql->multi_query = 0;
-#else
-	mysql->multi_query = 1;
-#endif
 
 	if (!object || !instanceof_function(Z_OBJCE_P(object), mysqli_link_class_entry TSRMLS_CC)) {
 		MYSQLI_RETURN_RESOURCE(mysqli_resource, mysqli_link_class_entry);