Removed unneeded HashPosition variable (php_implode() doesn't change the internal pointer)

- It was added in '06 with the "200-300%" implode() optimization (hasn't been merged to HEAD)

ext/standard/string.c

@@ -1130,7 +1130,6 @@ PHPAPI void php_implode(zval *delim, zval *arr, zval *return_value TSRMLS_DC)
 PHP_FUNCTION(implode)
 {
 	zval **arg1 = NULL, **arg2 = NULL, *delim, *arr;
-	HashPosition pos;
 
 	if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "Z|Z", &arg1, &arg2) == FAILURE) {
 		return;
@@ -1162,13 +1161,9 @@ PHP_FUNCTION(implode)
 			return;
 		}
 	}
-
-	pos = Z_ARRVAL_P(arr)->pInternalPointer;
 	
 	php_implode(delim, arr, return_value TSRMLS_CC);
 
-	Z_ARRVAL_P(arr)->pInternalPointer = pos;
-
 	if (arg2 == NULL) {
 		FREE_ZVAL(delim);
 	}