Revert "[nce] disable control flow guard on win32"

This reverts commit 963bf8ae08.

src/core/arm/nce/arm_nce.cpp

@@ -625,15 +625,7 @@ void ArmNce::Initialize() {
     });
 #else
     static std::once_flag flag;
-    std::call_once(flag, [] {
-        // Initialize exception handler
-        AddVectoredExceptionHandler(1, VectoredExceptionHandler);
-
-        // Disable control flow guard to allow context switching to guest code without causing a security error
-        PROCESS_MITIGATION_CONTROL_FLOW_GUARD_POLICY cfg_policy{};
-        cfg_policy.EnableControlFlowGuard = 0;
-        SetProcessMitigationPolicy(ProcessControlFlowGuardPolicy, &cfg_policy, sizeof(cfg_policy));
-    });
+    std::call_once(flag, [] { AddVectoredExceptionHandler(1, VectoredExceptionHandler); });
 #endif
 }