AOSCOS: MIPS: serial: drop STD_FLAGS

Per commit b1d984c ("crisv10: use flags from tty_port"), the flags
defined in STD_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST) were not
tested in other code and therefore needlessly initialised.

Drop them to prevent build errors.

Fixes: "AOSCOS: Revert "staging: sb105x: delete the driver""
Signed-off-by: Mingcong Bai <[email protected]>

Signed-off-by: Kexy Biscuit <[email protected]>

Author: MingcongBai

arch/mips/include/asm/serial.h

@@ -12,7 +12,6 @@
  */
 #define BASE_BAUD 0
 #else
-#define STD_COM_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST)
 #include <asm-generic/serial.h>
 #endif