serial: MPSC: Remove duplicate SUPPORT_SYSRQ definition

Remove the duplicate definition of SUPPORT_SYSRQ in mpsc driver.
Signed-off-by: Mark A. Greer <mgreer@mvista.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

drivers/serial/mpsc.c

@@ -74,10 +74,6 @@
 #include <asm/io.h>
 #include <asm/irq.h>
 
-#if defined(CONFIG_SERIAL_MPSC_CONSOLE) && defined(CONFIG_MAGIC_SYSRQ)
-#define SUPPORT_SYSRQ
-#endif
-
 #define	MPSC_NUM_CTLRS		2
 
 /*