[PARISC] Drop unused do_check_pgt_cache()

Drop the unused do_check_pgt_cache routine from mm/init.c and its
prototype in asm/pgalloc.h
Signed-off-by: Helge Deller <deller@parisc-linux.org>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>

arch/parisc/mm/init.c

@@ -477,11 +477,6 @@ void __init mem_init(void)
 
 }
 
-int do_check_pgt_cache(int low, int high)
-{
-	return 0;
-}
-
 unsigned long *empty_zero_page __read_mostly;
 
 void show_mem(void)

include/asm-parisc/pgalloc.h

@@ -137,7 +137,6 @@ static inline void pte_free_kernel(pte_t *pte)
 
 #define pte_free(page)	pte_free_kernel(page_address(page))
 
-extern int do_check_pgt_cache(int, int);
 #define check_pgt_cache()	do { } while (0)
 
 #endif