sparc32: Remove unused declarations in srmmu.c

Uses of these went away with the sun4c removal.

Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/arch/sparc/mm/srmmu.c b/arch/sparc/mm/srmmu.c
index 4c4002f..dc398e5 100644
--- a/arch/sparc/mm/srmmu.c
+++ b/arch/sparc/mm/srmmu.c
@@ -1921,12 +1921,6 @@
 	srmmu_is_bad();
 }
 
-extern unsigned long spwin_mmu_patchme, fwin_mmu_patchme,
-	tsetup_mmu_patchme, rtrap_mmu_patchme;
-
-extern unsigned long spwin_srmmu_stackchk, srmmu_fwin_stackchk,
-	tsetup_srmmu_stackchk, srmmu_rett_stackchk;
-
 #ifdef CONFIG_SMP
 /* Local cross-calls. */
 static void smp_flush_page_for_dma(unsigned long page)