PPC32: Remove more #ifdefs now that the config defines suitable

defaults for the advanced kernel config options.

include/asm-ppc/highmem.h

@@ -41,11 +41,7 @@ extern void kmap_init(void) __init;
  * easily, subsequent pte tables have to be allocated in one physical
  * chunk of RAM.
  */
-#ifdef CONFIG_HIGHMEM_START_BOOL
 #define PKMAP_BASE CONFIG_HIGHMEM_START
-#else
-#define PKMAP_BASE (0xfe000000UL)
-#endif /* CONFIG_HIGHMEM_START_BOOL */
 #define LAST_PKMAP 1024
 #define LAST_PKMAP_MASK (LAST_PKMAP-1)
 #define PKMAP_NR(virt)  ((virt-PKMAP_BASE) >> PAGE_SHIFT)

include/asm-ppc/page.h

@@ -9,12 +9,8 @@
 #ifdef __KERNEL__
 #include <linux/config.h>
 
-/* Be sure to change arch/ppc/Makefile to match */
-#ifdef CONFIG_KERNEL_START_BOOL
+/* This must match what is in arch/ppc/Makefile */
 #define PAGE_OFFSET	CONFIG_KERNEL_START
-#else
-#define PAGE_OFFSET	0xc0000000
-#endif /* CONFIG_KERNEL_START_BOOL */
 #define KERNELBASE	PAGE_OFFSET
 
 #ifndef __ASSEMBLY__