Couple more includes cleaned out

include/internal/catch_context.h

@@ -11,9 +11,6 @@
 #include "catch_interfaces_generators.h"
 #include "catch_ptr.hpp"
 
-#include <memory>
-#include <vector>
-#include <stdlib.h>
 
 namespace Catch {
 

include/internal/catch_tag_alias_registry.hpp

@@ -11,9 +11,6 @@
 #include "catch_tag_alias_registry.h"
 #include "catch_console_colour.hpp"
 
-#include <map>
-#include <iostream>
-
 namespace Catch {
 
     TagAliasRegistry::~TagAliasRegistry() {}