metrics makes no sense because 'exec'

lib/gitlab_shell.rb

@@ -133,11 +133,9 @@ class GitlabShell
     end
 
     args_string = [File.basename(executable), *args].join(' ')
-    GitlabMetrics.measure(File.basename(executable)) do
     $logger.info "gitlab-shell: executing git command <#{args_string}> for #{log_username}."
     exec_cmd(executable, *args)
   end
-  end
 
   # This method is not covered by Rspec because it ends the current Ruby process.
   def exec_cmd(*args)