Revert "bin/run-local: introduce --dry-run option"

This reverts commit 0feb156.

bin/run-local

@@ -28,7 +28,6 @@ ENV['BENCHMARK_ROOT'] = '/lkp/benchmarks'
 
 $opt_result_root = 'result'
 $opt_set_key_value = {}
-$dryrun = false
 
 opt_parser = OptionParser.new do |opts|
   opts.banner = 'Usage: run-local [-o RESULT_ROOT] JOBFILE'
@@ -44,13 +43,6 @@ opt_parser = OptionParser.new do |opts|
     $opt_set_key_value.merge!(YAML.load(key_value))
   end
 
-  opts.on('-s', '--dry-run', 'Perform a simulation of events') do
-    alias system puts_stdout # only output system commands to stdout
-    alias puts puts_stderr   # redirect logs to stderr to leave stdout to commands
-    $dryrun = true
-    $dryrun = true
-  end
-
   opts.on_tail('-h', '--help', 'Show this message') do
     puts opts
     exit
@@ -142,7 +134,6 @@ FileUtils.rm_rf TMP
 Dir.mkdir TMP
 
 job_script = result_root + '/job.sh'
-puts "job_script: #{job_script}"
 File.open(job_script, 'w', 0o775) do |file|
   file.puts jobx.to_shell
 end
@@ -159,8 +150,6 @@ job.save result_root + '/job.yaml'
 
 system job_script, 'extract_stats'
 
-exit if $dryrun
-
 stats = create_stats_matrix ENV['RESULT_ROOT']
 stats['stats_source'] = result_root + '/stats.json'
 unite_to(stats, _result_root)