perf scripting perl: Shorten function signatures

Removing unused parameters.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-b7r7o80o2xwwtlzgqxv50foe@git.kernel.orgSigned-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/util/scripting-engines/trace-event-perl.c

@@ -257,12 +257,9 @@ static inline struct event_format *find_cache_event(struct perf_evsel *evsel)
 	return event;
 }
 
-static void perl_process_tracepoint(union perf_event *perf_event __maybe_unused,
-				    struct perf_sample *sample,
+static void perl_process_tracepoint(struct perf_sample *sample,
 				    struct perf_evsel *evsel,
-				    struct machine *machine __maybe_unused,
-				    struct thread *thread,
-					struct addr_location *al)
+				    struct thread *thread)
 {
 	struct format_field *field;
 	static char handler[256];
@@ -349,10 +346,7 @@ static void perl_process_tracepoint(union perf_event *perf_event __maybe_unused,
 
 static void perl_process_event_generic(union perf_event *event,
 				       struct perf_sample *sample,
-				       struct perf_evsel *evsel,
-				       struct machine *machine __maybe_unused,
-				       struct thread *thread __maybe_unused,
-					   struct addr_location *al __maybe_unused)
+				       struct perf_evsel *evsel)
 {
 	dSP;
 
@@ -377,12 +371,12 @@ static void perl_process_event_generic(union perf_event *event,
 static void perl_process_event(union perf_event *event,
 			       struct perf_sample *sample,
 			       struct perf_evsel *evsel,
-			       struct machine *machine,
+			       struct machine *machine __maybe_unused,
 			       struct thread *thread,
-				   struct addr_location *al)
+			       struct addr_location *al __maybe_unused)
 {
-	perl_process_tracepoint(event, sample, evsel, machine, thread, al);
-	perl_process_event_generic(event, sample, evsel, machine, thread, al);
+	perl_process_tracepoint(sample, evsel, thread);
+	perl_process_event_generic(event, sample, evsel);
 }
 
 static void run_start_sub(void)