engine: Remove uses of Autohook from runframe.cpp (#810)

* Manually hook CEngine__Frame
* Remove AUTOHOOK_INIT and AUTOHOOK_DISPATCH

Author: ASpoonPlaysGames

primedev/engine/runframe.cpp

@@ -3,17 +3,14 @@
 #include "hoststate.h"
 #include "server/serverpresence.h"
 
-AUTOHOOK_INIT()
-
-// clang-format off
-AUTOHOOK(CEngine__Frame, engine.dll + 0x1C8650,
-void, __fastcall, (CEngine* self))
-// clang-format on
+static void(__fastcall* o_pCEngine__Frame)(CEngine* self) = nullptr;
+static void __fastcall h_CEngine__Frame(CEngine* self)
 {
-	CEngine__Frame(self);
+	o_pCEngine__Frame(self);
 }
 
 ON_DLL_LOAD("engine.dll", RunFrame, (CModule module))
 {
-	AUTOHOOK_DISPATCH()
+	o_pCEngine__Frame = module.Offset(0x1C8650).RCast<decltype(o_pCEngine__Frame)>();
+	HookAttach(&(PVOID&)o_pCEngine__Frame, (PVOID)h_CEngine__Frame);
 }