uart8250: Drop unused declarations

Change-Id: Ie915ef9dbc45604bd5ca1b610acb12af634fdebe
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/5138
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>

src/include/uart8250.h

@@ -111,9 +111,6 @@
 #error Bad ttyS0 baud rate
 #endif
 
-/* Line Control Settings */
-#define UART_LCS	CONFIG_TTYS0_LCS
-
 #if CONFIG_CONSOLE_SERIAL8250
 unsigned char uart8250_rx_byte(unsigned base_port);
 int uart8250_can_rx_byte(unsigned base_port);