[ARM] remove pc_pointer()

pc_pointer() was a function to mask the PC for 26-bit ARMs, which
we no longer support.  Remove it.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/include/asm/ptrace.h b/arch/arm/include/asm/ptrace.h
index b415c0e..7319261 100644
--- a/arch/arm/include/asm/ptrace.h
+++ b/arch/arm/include/asm/ptrace.h
@@ -54,7 +54,6 @@
 #define PSR_C_BIT	0x20000000
 #define PSR_Z_BIT	0x40000000
 #define PSR_N_BIT	0x80000000
-#define PCMASK		0
 
 /*
  * Groups of PSR bits
@@ -139,11 +138,7 @@
 	return 0;
 }
 
-#define pc_pointer(v) \
-	((v) & ~PCMASK)
-
-#define instruction_pointer(regs) \
-	(pc_pointer((regs)->ARM_pc))
+#define instruction_pointer(regs)	(regs)->ARM_pc
 
 #ifdef CONFIG_SMP
 extern unsigned long profile_pc(struct pt_regs *regs);