perf intel-pt: Remove guest_machine_pid

Remove guest_machine_pid because it is not needed.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: kvm@vger.kernel.org
Link: https://lore.kernel.org/r/20220711093218.10967-29-adrian.hunter@intel.comSigned-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/util/intel-pt.c

@@ -194,7 +194,6 @@ struct intel_pt_queue {
 	struct machine *guest_machine;
 	struct thread *guest_thread;
 	struct thread *unknown_guest_thread;
-	pid_t guest_machine_pid;
 	bool exclude_kernel;
 	bool have_sample;
 	u64 time;
@@ -685,7 +684,7 @@ static int intel_pt_get_guest(struct intel_pt_queue *ptq)
 	struct machine *machine;
 	pid_t pid = ptq->pid <= 0 ? DEFAULT_GUEST_KERNEL_ID : ptq->pid;
 
-	if (ptq->guest_machine && pid == ptq->guest_machine_pid)
+	if (ptq->guest_machine && pid == ptq->guest_machine->pid)
 		return 0;
 
 	ptq->guest_machine = NULL;
@@ -705,7 +704,6 @@ static int intel_pt_get_guest(struct intel_pt_queue *ptq)
 		return -1;
 
 	ptq->guest_machine = machine;
-	ptq->guest_machine_pid = pid;
 
 	return 0;
 }