staging: vt6656: remove dead code ControlvMaskByte

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/vt6656/control.c

@@ -50,17 +50,3 @@ void ControlvReadByte(struct vnt_private *pDevice, u8 reg, u8 reg_off,
 			reg_off, reg, sizeof(u8), data);
 	return;
 }
-
-void ControlvMaskByte(struct vnt_private *pDevice, u8 reg_type, u8 reg_off,
-			u8 reg_mask, u8 data)
-{
-	u8 reg_data[2];
-
-	reg_data[0] = data;
-	reg_data[1] = reg_mask;
-
-	vnt_control_out(pDevice, MESSAGE_TYPE_WRITE_MASK, reg_off,
-			reg_type, ARRAY_SIZE(reg_data), reg_data);
-
-	return;
-}

drivers/staging/vt6656/control.h

@@ -36,7 +36,4 @@
 void ControlvReadByte(struct vnt_private *pDevice, u8 reg, u8 reg_off,
 			u8 *data);
 
-void ControlvMaskByte(struct vnt_private *pDevice, u8 reg_type, u8 reg_off,
-			u8 reg_mask, u8 data);
-
 #endif /* __CONTROL_H__ */