[windows] remove various workarounds which were required for vs2013

Source/Core/Common/CommonFuncs.h

@@ -102,12 +102,6 @@ extern "C"
 	__declspec(dllimport) void __stdcall DebugBreak(void);
 }
 	#define Crash() {DebugBreak();}
-
-	#if (_MSC_VER > 1800)
-	#error alignof compat can be removed
-	#else
-	#define alignof(x) __alignof(x)
-	#endif
 #endif // WIN32 ndef
 
 // Generic function to get last error message.

Source/Core/Common/Event.h

@@ -24,9 +24,6 @@
 
 namespace Common {
 
-// Windows uses a specific implementation because std::condition_variable has
-// terrible performance for this kind of workload with MSVC++ 2013.
-#ifndef _WIN32
 class Event final
 {
 public:
@@ -76,39 +73,5 @@ private:
 	std::condition_variable m_condvar;
 	std::mutex m_mutex;
 };
-#else
-class Event final
-{
-public:
-	void Set()
-	{
-		m_event.set();
-	}
-
-	void Wait()
-	{
-		m_event.wait();
-		m_event.reset();
-	}
-
-	template<class Rep, class Period>
-	bool WaitFor(const std::chrono::duration<Rep, Period>& rel_time)
-	{
-		bool signaled = m_event.wait(
-			(u32)std::chrono::duration_cast<std::chrono::milliseconds>(rel_time).count()
-			) == 0;
-		m_event.reset();
-		return signaled;
-	}
-
-	void Reset()
-	{
-		m_event.reset();
-	}
-
-private:
-	concurrency::event m_event;
-};
-#endif
 
 }  // namespace Common

Source/Core/Common/Flag.h

@@ -56,11 +56,7 @@ public:
 	}
 
 private:
-	// We are not using std::atomic_bool here because MSVC sucks as of VC++
-	// 2013 and does not implement the std::atomic_bool(bool) constructor.
-	//
-	// Re-evaluate next time we upgrade that piece of shit.
-	std::atomic<bool> m_val;
+	std::atomic_bool m_val;
 };
 
 }  // namespace Common

Source/Core/Common/x64Emitter.h

@@ -954,8 +954,7 @@ public:
 	template <typename T, typename... Args>
 	void ABI_CallLambdaC(const std::function<T(Args...)>* f, u32 p1)
 	{
-		// Double casting is required by VC++ for some reason.
-		auto trampoline = (void(*)())&XEmitter::CallLambdaTrampoline<T, Args...>;
+		auto trampoline = &XEmitter::CallLambdaTrampoline<T, Args...>;
 		ABI_CallFunctionPC((void*)trampoline, const_cast<void*>((const void*)f), p1);
 	}
 };  // class XEmitter