perf tools: Remove expensive old debug code from perf top
Calling gettimeofday() at high frequency is painful for handicapped boxen. The spot calling gettimeofday() is old unneeded debug code, so remove it. Reported-by: NIngo Molnar <mingo@elte.hu> Signed-off-by: NMike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <1255438640.7173.1.camel@marge.simson.net> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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