remove support of old plugin config format

Remove code refering to old plugin config format.

Change-Id: Iba0922d3bfe066444e5e982c303968d15e1853a1

jenkins_jobs/config.py

@@ -360,18 +360,5 @@ class JJBConfig(object):
         return result
 
     def get_plugin_config(self, plugin, key, default=None):
-        value = self.get_module_config('plugin "{}"'.format(plugin), key,
-                                       default)
-
-        # Backwards compatibility for users who have not switched to the new
-        # plugin configuration format in their config. This code should be
-        # removed in future versions of JJB after 2.0.
-        if value is default:
-            old_value = self.get_module_config(plugin, key, _NOTSET)
-            # only log warning if detected a plugin config setting.
-            if old_value is not _NOTSET:
-                value = old_value
-                logger.warning(
-                    DEPRECATED_PLUGIN_CONFIG_SECTION_MESSAGE.format(
-                        plugin=plugin))
-        return value
+        return self.get_module_config('plugin "{}"'.format(plugin), key,
+                                      default)

tests/cmd/fixtures/plugin_warning.ini

@@ -1,5 +1,2 @@
-[old_plugin]
-setting = some value
-
 [plugin "new_plugin"]
 setting = some value

tests/cmd/test_config.py

@@ -77,33 +77,6 @@ class TestConfigs(CmdTestsBase):
         jenkins_jobs = entry.JenkinsJobs(args)
         self.assertRaises(IOError, jenkins_jobs.execute)
 
-    def test_config_old_plugin_format_warning(self):
-        """
-        Run test mode and check that old plugin settings result
-        in a warning, while ensuring that missing sections do not
-        trigger the same warning if a default value is provided.
-        """
-        args = ['--conf',
-                os.path.join(self.fixtures_path, 'plugin_warning.ini'),
-                'test', 'foo']
-        jenkins_jobs = entry.JenkinsJobs(args)
-        jenkins_jobs.jjb_config.get_plugin_config(
-            'old_plugin', 'setting', True)
-        jenkins_jobs.jjb_config.get_plugin_config(
-            'old_plugin_no_conf', 'setting', True)
-        jenkins_jobs.jjb_config.get_plugin_config(
-            'new_plugin', 'setting')
-        self.assertIn(
-            'using a [old_plugin] section in your config file is deprecated',
-            self.logger.output)
-        self.assertNotIn(
-            'using a [old_plugin_no_conf] secton in your config file is '
-            'deprecated',
-            self.logger.output)
-        self.assertNotIn(
-            'using a [new_plugin] section in your config file is deprecated',
-            self.logger.output)
-
     def test_config_options_not_replaced_by_cli_defaults(self):
         """
         Run test mode and check config settings from conf file retained

tests/publishers/fixtures/stash002.conf

@@ -1,3 +1,3 @@
-[stash]
+[plugin "stash"]
 username=user
 password=pass