Revert "serial: amba-pl011: Make sure we initialize the port.lock spi…

…nlock"

This reverts commit 8508f4c.

There has been a quick fix against uninitialised lock revealed by
the commit f743061 ("serial: core: Initialise spin lock before use
in uart_configure_port()"). Since we have now better fix in serial core,
this may be safely reverted.

Fixes: 8508f4c ("serial: amba-pl011: Make sure we initialize the port.lock spinlock")
Depends-on: f743061 ("serial: core: Initialise spin lock before use in uart_configure_port()")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20200711135346.71171-2-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/tty/serial/amba-pl011.c

@@ -2607,7 +2607,6 @@ static int pl011_setup_port(struct device *dev, struct uart_amba_port *uap,
 	uap->port.has_sysrq = IS_ENABLED(CONFIG_SERIAL_AMBA_PL011_CONSOLE);
 	uap->port.flags = UPF_BOOT_AUTOCONF;
 	uap->port.line = index;
-	spin_lock_init(&uap->port.lock);
 
 	amba_ports[index] = uap;