ext/mysqli: Remove PHP 6 remnants

Author: Girgias

ext/mysqli/mysqli_warning.c

@@ -24,13 +24,6 @@
 #include "php_mysqli_structs.h"
 #include "mysqli_priv.h"
 
-/* Define these in the PHP7 tree to make merging easy process */
-#define ZSTR_DUPLICATE (1<<0)
-#define ZSTR_AUTOFREE  (1<<1)
-
-#define ZVAL_UTF8_STRING(z, s, flags)          ZVAL_STRING((z), (char*)(s))
-#define ZVAL_UTF8_STRINGL(z, s, l, flags)      ZVAL_STRINGL((z), (char*)(s), (l))
-
 /* {{{ void php_clear_warnings() */
 void php_clear_warnings(MYSQLI_WARNING *w)
 {
@@ -57,7 +50,7 @@ MYSQLI_WARNING *php_new_warning(zval * reason, int errorno)
 	ZVAL_COPY(&w->reason, reason);
 	convert_to_string(&w->reason);
 
-	ZVAL_UTF8_STRINGL(&(w->sqlstate), "HY000", sizeof("HY000") - 1,  ZSTR_DUPLICATE);
+	ZVAL_STRINGL(&(w->sqlstate), "HY000", sizeof("HY000") - 1);
 
 	w->errorno = errorno;