ARM: 8598/1: remove traces of perf_ops_bp

Even though perf_ops_bp was removed/renamed back in commit
b0a873eb ("perf: Register PMU implementations"), as part of
v2.6.37, its definition still lives on in some arch headers.

This patch removes the vestigal definition from arm.
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Cc: Russell King <linux@armlinux.org.uk>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

arch/arm/include/asm/hw_breakpoint.h

@@ -114,7 +114,6 @@ struct notifier_block;
 struct perf_event;
 struct pmu;
 
-extern struct pmu perf_ops_bp;
 extern int arch_bp_generic_fields(struct arch_hw_breakpoint_ctrl ctrl,
 				  int *gen_len, int *gen_type);
 extern int arch_check_bp_in_kernelspace(struct perf_event *bp);