Bug 1260327 - Remove the --recheck option of config.status. r=chmanchester

With mozconfigs injecting options, it never really worked as intended.

python/mozbuild/mozbuild/config_status.py

@@ -74,9 +74,6 @@ def config_status(topobjdir='.', topsrcdir='.', defines=None,
     is in a different directory. It will, however, treat the directory
     containing config.status as the top object directory with the -n option.
 
-    The --recheck option, like with the original config.status, runs configure
-    again, with the options given in the "ac_configure_args" subst.
-
     The options to this function are passed when creating the
     ConfigEnvironment. These lists, as well as the actual wrapper script
     around this function, are meant to be generated by configure.
@@ -98,8 +95,6 @@ def config_status(topobjdir='.', topsrcdir='.', defines=None,
     default_backends = (substs or {}).get('BUILD_BACKENDS', ['RecursiveMake'])
 
     parser = ArgumentParser()
-    parser.add_argument('--recheck', dest='recheck', action='store_true',
-                        help='update config.status by reconfiguring in the same conditions')
     parser.add_argument('-v', '--verbose', dest='verbose', action='store_true',
                         help='display verbose output')
     parser.add_argument('-n', dest='not_topobjdir', action='store_true',
@@ -142,11 +137,6 @@ def config_status(topobjdir='.', topsrcdir='.', defines=None,
     # This won't actually do anything because of the magic of generators.
     definitions = emitter.emit(reader.read_topsrcdir())
 
-    if options.recheck:
-        # Execute configure from the top object directory
-        os.chdir(topobjdir)
-        os.execlp('sh', 'sh', '-c', ' '.join([os.path.join(topsrcdir, 'configure'), env.substs['ac_configure_args'], '--no-create', '--no-recursion']))
-
     log_level = logging.DEBUG if options.verbose else logging.INFO
     log_manager.add_terminal_logging(level=log_level)
     log_manager.enable_unstructured()