MIPS: IP22: Remove an unused function

Nobody is using the ARCS-specific prom_getcmdline(), so let's remove it.

Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@movial.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

arch/mips/fw/arc/cmdline.c

@@ -16,11 +16,6 @@
 
 #undef DEBUG_CMDLINE
 
-char * __init prom_getcmdline(void)
-{
-	return arcs_cmdline;
-}
-
 static char *ignored[] = {
 	"ConsoleIn=",
 	"ConsoleOut=",