perf auxtrace: Remove unused 'pmu' pointer from struct auxtrace_record

The 'pmu' pointer in the auxtrace_record structure is not used after
support multiple AUX events, remove it.

Reviewed-by: Adrian Hunter <[e-mail]>
Signed-off-by: Leo Yan <[e-mail]>
Cc: Ian Rogers <[e-mail]>
Cc: James Clark <[e-mail]>
Cc: Kan Liang <[e-mail]>
Cc: Mike Leach <[e-mail]>
Cc: Namhyung Kim <[e-mail]>
Cc: Suzuki Poulouse <[e-mail]>
Cc: [e-mail]
Cc: [e-mail]
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Arnaldo Carvalho de Melo <[e-mail]>

tools/perf/arch/arm/util/cs-etm.c

···
 	}
 
 	ptr->cs_etm_pmu			= cs_etm_pmu;
-	ptr->itr.pmu			= cs_etm_pmu;
 	ptr->itr.parse_snapshot_options	= cs_etm_parse_snapshot_options;
 	ptr->itr.recording_options	= cs_etm_recording_options;
 	ptr->itr.info_priv_size		= cs_etm_info_priv_size;

tools/perf/arch/arm64/util/arm-spe.c

···
 	}
 
 	sper->arm_spe_pmu = arm_spe_pmu;
-	sper->itr.pmu = arm_spe_pmu;
 	sper->itr.snapshot_start = arm_spe_snapshot_start;
 	sper->itr.snapshot_finish = arm_spe_snapshot_finish;
 	sper->itr.find_snapshot = arm_spe_find_snapshot;

tools/perf/arch/arm64/util/hisi-ptt.c

···
 	}
 
 	pttr->hisi_ptt_pmu = hisi_ptt_pmu;
-	pttr->itr.pmu = hisi_ptt_pmu;
 	pttr->itr.recording_options = hisi_ptt_recording_options;
 	pttr->itr.info_priv_size = hisi_ptt_info_priv_size;
 	pttr->itr.info_fill = hisi_ptt_info_fill;

tools/perf/arch/x86/util/intel-bts.c

···
 	}
 
 	btsr->intel_bts_pmu = intel_bts_pmu;
-	btsr->itr.pmu = intel_bts_pmu;
 	btsr->itr.recording_options = intel_bts_recording_options;
 	btsr->itr.info_priv_size = intel_bts_info_priv_size;
 	btsr->itr.info_fill = intel_bts_info_fill;

tools/perf/arch/x86/util/intel-pt.c

···
 	}
 
 	ptr->intel_pt_pmu = intel_pt_pmu;
-	ptr->itr.pmu = intel_pt_pmu;
 	ptr->itr.recording_options = intel_pt_recording_options;
 	ptr->itr.info_priv_size = intel_pt_info_priv_size;
 	ptr->itr.info_fill = intel_pt_info_fill;

tools/perf/util/auxtrace.h

···
 	int (*read_finish)(struct auxtrace_record *itr, int idx);
 	unsigned int alignment;
 	unsigned int default_aux_sample_size;
-	struct perf_pmu *pmu;
 	struct evlist *evlist;
 };