Revert "Turn on FPS display"

This reverts commit e14d3f59f2.

The framerate is now stable and correct enough that the FPS display is
no longer needed.

src/Main.cpp

@@ -42,7 +42,7 @@ BOOL gbUseJoystick = FALSE;
 int gJoystickButtonTable[8];
 
 static BOOL bActive = TRUE;
-static BOOL bFPS = TRUE;
+static BOOL bFPS = FALSE;
 
 static int windowWidth;
 static int windowHeight;