Fix incorrectly ported tests for http

Author: bukka

ext/standard/tests/http/bug75535.phpt

@@ -14,25 +14,14 @@ $responses = array(
 
 ['pid' => $pid, 'uri' => $uri] = http_server($responses, $output);
 
-var_dump(http_get_last_response_headers());
-
 var_dump(file_get_contents($uri));
 var_dump($http_response_header);
-var_dump(http_get_last_response_headers());
 
 http_server_kill($pid);
 
-?>
 --EXPECT--
-NULL
 string(0) ""
 array(1) {
   [0]=>
   string(15) "HTTP/1.0 200 Ok"
 }
-array(2) {
-  [0]=>
-  string(15) "HTTP/1.0 200 Ok"
-  [1]=>
-  string(14) "Content-Length"
-}