FEXCore: Move CPUInfo to FEX

This is only ever used in the frontend now.

FEXCore/include/FEXCore/Utils/CPUInfo.h

@@ -1,14 +0,0 @@
-// SPDX-License-Identifier: MIT
-#pragma once
-#include <FEXCore/Utils/CompilerDefs.h>
-
-#include <cstdint>
-
-namespace FEXCore::CPUInfo {
-/**
- * @brief Calculate the number of CPUs in the system regardless of affinity mask.
- *
- * @return The number of CPUs in the system.
- */
-FEX_DEFAULT_VISIBILITY uint32_t CalculateNumberOfCPUs();
-} // namespace FEXCore::CPUInfo