powerpc: get rid of addr_probe()

This function has never been used, at least since the beginning
of the git repository

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>

arch/powerpc/cpu/mpc83xx/traps.c

@@ -215,30 +215,3 @@ void DebugException(struct pt_regs *regs)
 	do_bedbug_breakpoint( regs );
 #endif
 }
-
-/* Probe an address by reading.  If not present, return -1, otherwise
- * return 0.
- */
-int addr_probe(uint *addr)
-{
-#if 0
-	int	retval;
-
-	__asm__ __volatile__(			\
-		"1:	lwz %0,0(%1)\n"		\
-		"	eieio\n"		\
-		"	li %0,0\n"		\
-		"2:\n"				\
-		".section .fixup,\"ax\"\n"	\
-		"3:	li %0,-1\n"		\
-		"	b 2b\n"			\
-		".section __ex_table,\"a\"\n"	\
-		"	.align 2\n"		\
-		"	.long 1b,3b\n"		\
-		".text"				\
-		: "=r" (retval) : "r"(addr));
-
-	return (retval);
-#endif
-	return 0;
-}

arch/powerpc/cpu/mpc85xx/traps.c

@@ -286,11 +286,3 @@ void DebugException(struct pt_regs *regs)
 	do_bedbug_breakpoint( regs );
 #endif
 }
-
-/* Probe an address by reading.	 If not present, return -1, otherwise
- * return 0.
- */
-int addr_probe(uint *addr)
-{
-	return 0;
-}

arch/powerpc/cpu/mpc86xx/traps.c

@@ -195,13 +195,3 @@ void UnknownException(struct pt_regs *regs)
 	       regs->nip, regs->msr, regs->trap);
 	_exception(0, regs);
 }
-
-/*
- * Probe an address by reading.
- * If not present, return -1,
- * otherwise return 0.
- */
-int addr_probe(uint *addr)
-{
-	return 0;
-}

arch/powerpc/cpu/mpc8xx/traps.c

@@ -155,11 +155,3 @@ void DebugException(struct pt_regs *regs)
 	printf("Debugger trap at @ %lx\n", regs->nip);
 	show_regs(regs);
 }
-
-/* Probe an address by reading.  If not present, return -1, otherwise
- * return 0.
- */
-int addr_probe(uint *addr)
-{
-	return 0;
-}