perf lock: Remove stale comments

The comment was for symbol_conf.sort_by_name which was deleted already.
Let's get rid of the stale comments as well.

Acked-by: Ian Rogers <irogers@google.com>
Cc: Hao Luo <haoluo@google.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Song Liu <song@kernel.org>
Link: https://lore.kernel.org/r/20230628200141.2739587-2-namhyung@kernel.org
Signed-off-by: Namhyung Kim <namhyung@kernel.org>

Author: namhyung

tools/perf/builtin-lock.c

@@ -1773,7 +1773,6 @@ static int __cmd_report(bool display_info)
 		return PTR_ERR(session);
 	}
 
-	/* for lock function check */
 	symbol_conf.allow_aliases = true;
 	symbol__init(&session->header.env);
 
@@ -1902,7 +1901,6 @@ static int __cmd_contention(int argc, const char **argv)
 	if (con.aggr_mode == LOCK_AGGR_CALLER)
 		con.save_callstack = true;
 
-	/* for lock function check */
 	symbol_conf.allow_aliases = true;
 	symbol__init(&session->header.env);