Revert "perf tools: Fix jump label always changing during tracing"

This reverts commit deaff8b659cf4d34181c087b8cdf74f1eb17b02b.

This commit makes CLOEXEC feature undetected for normal users,
because per-cpu events are priviledged.

Reported-by: Peter Zijlstra <peterz@infradead.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/20140728065844.GK6758@twins.programming.kicks-ass.net
Signed-off-by: Jiri Olsa <jolsa@kernel.org>