FPSCounter: Remove redundant destructor.

Source/Core/VideoCommon/FPSCounter.cpp

@@ -18,12 +18,6 @@ FPSCounter::FPSCounter()
 	m_render_time.Update();
 }
 
-FPSCounter::~FPSCounter()
-{
-	if (m_bench_file.is_open())
-		m_bench_file.close();
-}
-
 void FPSCounter::LogRenderTimeToFile(u64 val)
 {
 	if (!m_bench_file.is_open())

Source/Core/VideoCommon/FPSCounter.h

@@ -16,9 +16,6 @@ public:
 	// Initializes the FPS counter.
 	FPSCounter();
 
-	// Shutdown the FPS counter by closing the logs.
-	~FPSCounter();
-
 	// Called when a frame is rendered. Returns the value to be displayed on
 	// screen as the FPS counter (updated every second).
 	int Update();