sparc: Delete prom_*getchar().

Completely unused.

Signed-off-by: David S. Miller <davem@davemloft.net>

arch/sparc/include/asm/oplib_32.h

@@ -102,11 +102,6 @@ extern int prom_getrev(void);
 /* Get the prom firmware revision. */
 extern int prom_getprev(void);
 
-/* Character operations to/from the console.... */
-
-/* Blocking get character from console. */
-extern void prom_getchar(char *buf);
-
 /* Blocking put character to console. */
 extern void prom_putchar(const char *buf);