Remove unused verify_requirements argument

src/flake8/plugins/manager.py

@@ -154,15 +154,13 @@ class Plugin(object):
             LOG.critical(msg)
             raise TypeError(msg)
 
-    def load_plugin(self, verify_requirements=False):
+    def load_plugin(self):
         """Retrieve the plugin for this entry-point.
 
         This loads the plugin, stores it on the instance and then returns it.
         It does not reload it after the first time, it merely returns the
         cached plugin.
 
-        :param bool verify_requirements:
-            Does nothing, retained for backwards compatibility.
         :returns:
             Nothing
         """
@@ -236,17 +234,13 @@ class Plugin(object):
 class PluginManager(object):  # pylint: disable=too-few-public-methods
     """Find and manage plugins consistently."""
 
-    def __init__(
-        self, namespace, verify_requirements=False, local_plugins=None
-    ):
+    def __init__(self, namespace, local_plugins=None):
         """Initialize the manager.
 
         :param str namespace:
             Namespace of the plugins to manage, e.g., 'flake8.extension'.
         :param list local_plugins:
             Plugins from config (as "X = path.to:Plugin" strings).
-        :param bool verify_requirements:
-            Does nothing, retained for backwards compatibility.
         """
         self.namespace = namespace
         self.plugins = {}