Don't need to merge globals when loading the module loader. With this…

…, the produced CORE.setting.pbc loads up until attempting to deserialize, which currently fails for some reason.

src/Perl6/World.pm

@@ -200,8 +200,7 @@ class Perl6::World is HLL::World {
                             'nqp' ),
                         'ModuleLoader'),
                     1),
-                'Perl6::ModuleLoader',
-                self.get_slot_past_for_object($*W.pkg_create_mo(pir::get_knowhow__P()))
+                'Perl6::ModuleLoader'
             ))
     }