[video_core, hle] remove redundant parent references in system structs (#3908)

reworked a bit to remove references of parent objects and instead pass as arguments to methods to prevent useless reloads

Signed-off-by: lizzie <lizzie@eden-emu.dev>
Co-authored-by: maufeat <sahyno1996@gmail.com>
Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/3908
Reviewed-by: Maufeat <sahyno1996@gmail.com>
Reviewed-by: crueter <crueter@eden-emu.dev>

src/core/hle/service/friend/friend.cpp

@@ -183,7 +183,7 @@ private:
         auto& readable_event = completion_event->GetReadableEvent();
 
         IPC::ResponseBuilder rb{ctx, 2, 1};
-        rb.Push(readable_event.Signal());
+        rb.Push(readable_event.Signal(system.Kernel()));
         rb.PushCopyObjects(readable_event);
     }