remove unnecessary Syntax -> haxe.macro.Tools dependency

std/python/Syntax.hx

@@ -2,14 +2,10 @@ package python;
 
 #if macro
 import haxe.macro.Expr;
-
 import haxe.macro.Context;
-
 import haxe.macro.ExprTools;
 #end
 
-using haxe.macro.Tools;
-
 extern class Syntax {
 
 	#if macro