revert: remove non-metal shader init from Client.cpp

src/client/Client.cpp

@@ -11,7 +11,6 @@
 #include "glue/CGlueMgr.hpp"
 #include "glue/GlueScriptEvents.hpp"
 #include "gx/Screen.hpp"
-#include "gx/Shader.hpp"
 #include "gx/Texture.hpp"
 #include "model/Model2.hpp"
 #include "net/Poll.hpp"
@@ -236,7 +235,6 @@ int32_t InitializeEngineCallback(const void* a1, void* a2) {
 
     auto m2Flags = M2RegisterCVars();
     M2Initialize(m2Flags, 0);
-    CShaderEffect::InitShaderSystem((M2GetCacheFlags() & 0x8) != 0, 0);
 
     // v4 = *(_DWORD *)(dword_B2FA00 + 48);
     // sub_4B61C0(dword_AB6128[v4]);