crypto: montage: tsse_vuart: drop unused vuart_wait_for_xmitr()

This function was not used anywhere.

Signed-off-by: Mingcong Bai <[email protected]>

drivers/crypto/montage/tsse/tsse_vuart.c

@@ -74,24 +74,6 @@ static void vuart_serial_out(struct uart_port *port, int offset, int value)
 	writel(value, port->membase + offset);
 }
 
-static void vuart_wait_for_xmitr(struct uart_port *port)
-{
-	unsigned int status, tmout = 10000;
-
-	for (;;) {
-		status = vuart_serial_in(port, VUART_FSR);
-		if (FIELD_GET(VUART_FSR_TXFIFOE, status))
-			break;
-		if (--tmout == 0) {
-			pr_err("%s:timeout(10ms), TX is not empty.\n",
-			       __func__);
-			break;
-		}
-		udelay(1);
-		touch_nmi_watchdog();
-	}
-}
-
 static unsigned int vuart_tx_empty(struct uart_port *port)
 {
 	unsigned long flags;