don't clear the whole server context to not confuse phpunit time debugs

Author: lode

tests/helpers/RequestParserTest.php

@@ -91,7 +91,11 @@ public function testFromSuperglobals_WithPhpInputStream() {
 	}
 
 	public function testFromSuperglobals_WithoutServerContext() {
-		$_SERVER = [];
+		unset($_SERVER['REQUEST_SCHEME']);
+		unset($_SERVER['HTTP_HOST']);
+		unset($_SERVER['REQUEST_URI']);
+		unset($_SERVER['CONTENT_TYPE']);
+		
 		$_GET    = [];
 		$_POST   = [];