serial: 8250_exar: Remove duplicate assignment

UPF_EXAR_EFR is set globally for each port enumerated by the driver.
Thus, no need to repeat this in individual ->setup() hook.
Signed-off-by: NAndy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: NJan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/tty/serial/8250/8250_exar.c

@@ -109,7 +109,6 @@ pci_fastcom335_setup(struct exar8250 *priv, struct pci_dev *pcidev,
 	u8 __iomem *p;
 	int err;
 
-	port->port.flags |= UPF_EXAR_EFR;
 	port->port.uartclk = baud * 16;
 
 	err = default_setup(priv, pcidev, idx, offset, port);