tools lib traceevent: Removed unneeded !! and return parenthesis

As return is not a function we do not need parenthesis around the return
value. Also, a function returning bool does not need to add !!.
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Tzvetomir Stoyanov <tstoyanov@vmware.com>
Link: http://lkml.kernel.org/r/20190401164343.817886725@goodmis.orgSigned-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

tools/lib/traceevent/event-parse-api.c

@@ -88,7 +88,7 @@ void tep_clear_flag(struct tep_handle *tep, enum tep_flag flag)
 bool tep_test_flag(struct tep_handle *tep, enum tep_flag flag)
 {
 	if (tep)
-		return (tep->flags & flag);
+		return tep->flags & flag;
 	return false;
 }
 
@@ -340,7 +340,7 @@ void tep_set_latency_format(struct tep_handle *pevent, int lat)
 bool tep_is_old_format(struct tep_handle *tep)
 {
 	if (tep)
-		return !!(tep->old_format);
+		return tep->old_format;
 	return false;
 }