perf/x86/intel/rapl: Remove the unused RAPL_EVENT_DESC() macro

perf/x86/intel/rapl: Remove the unused RAPL_EVENT_DESC() macro

Signed-off-by: Huang Rui <[email protected]>
Cc: Andy Lutomirski <[email protected]>
Cc: Arnaldo Carvalho de Melo <[email protected]>
Cc: Borislav Petkov <[email protected]>
Cc: Dasaratharaman Chandramouli <[email protected]>
Cc: Fengguang Wu <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Stephane Eranian <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: Tony Li <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>