remove unused parameter

stepmania/src/InputFilter.cpp

@@ -167,7 +167,7 @@ void InputFilter::Update( float fDeltaTime )
 {
 	RageTimer now;
 
-	INPUTMAN->Update( fDeltaTime );
+	INPUTMAN->Update();
 
 	/* Make sure that nothing gets inserted while we do this, to prevent
 	 * things like "key pressed, key release, key repeat". */

stepmania/src/RageInput.cpp

@@ -38,7 +38,7 @@ void RageInput::LoadDrivers()
 		LOG->Warn( "No input devices were loaded." );
 }
 
-void RageInput::Update( float fDeltaTime )
+void RageInput::Update()
 {
 	/* Update optional devices. */
 	for( unsigned i = 0; i < m_pDevices.size(); ++i )

stepmania/src/RageInput.h

@@ -15,7 +15,7 @@ public:
 	~RageInput();
 
 	void LoadDrivers();
-	void Update( float fDeltaTime );
+	void Update();
 	bool DevicesChanged();
 	void GetDevicesAndDescriptions( vector<InputDevice>& vDevicesOut, vector<CString>& vsDescriptionsOut );
 	void WindowReset();