staging: nvec: remove NVEC_PS2_DEBUG and dead debug macro

The NVEC_PS2_DEBUG macro and NVEC_PHD() are unused and only add clutter.
Remove them completely.

Suggested-by: Greg Kroah-Hartman <[e-mail]>
Signed-off-by: Emre Cecanpunar <[e-mail]>
Link: https://patch.msgid.link/[e-mail]
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/staging/nvec/nvec_ps2.c

···
 #define DISABLE_MOUSE	0xf5
 #define PSMOUSE_RST	0xff
 
-#ifdef NVEC_PS2_DEBUG
-#define NVEC_PHD(str, buf, len) \
-	print_hex_dump(KERN_DEBUG, str, DUMP_PREFIX_NONE, \
-			16, 1, buf, len, false)
-#else
-#define NVEC_PHD(str, buf, len) do { } while (0)
-#endif
-
 enum ps2_subcmds {
 	SEND_COMMAND = 1,
 	RECEIVE_N,
···
 	case NVEC_PS2_EVT:
 		for (i = 0; i < msg[1]; i++)
 			serio_interrupt(ps2_dev.ser_dev, msg[2 + i], 0);
-		NVEC_PHD("ps/2 mouse event: ", &msg[2], msg[1]);
 		return NOTIFY_STOP;
 
 	case NVEC_PS2:
 		if (msg[2] == 1) {
 			for (i = 0; i < (msg[1] - 2); i++)
 				serio_interrupt(ps2_dev.ser_dev, msg[i + 4], 0);
-			NVEC_PHD("ps/2 mouse reply: ", &msg[4], msg[1] - 2);
 		}
 
-		else if (msg[1] != 2) /* !ack */
-			NVEC_PHD("unhandled mouse event: ", msg, msg[1] + 2);
 		return NOTIFY_STOP;
 	}