Remove unused imports

synapse/federation/persistence.py

@@ -21,8 +21,6 @@ These actions are mostly only used by the :py:mod:`.replication` module.
 
 from twisted.internet import defer
 
-from .units import Pdu
-
 from synapse.util.logutils import log_function
 
 import json

synapse/federation/units.py

@@ -18,11 +18,8 @@ server protocol.
 """
 
 from synapse.util.jsonobject import JsonEncodedObject
-from syutil.base64util import encode_base64
 
 import logging
-import json
-import copy
 
 
 logger = logging.getLogger(__name__)

synapse/handlers/federation.py

@@ -17,15 +17,13 @@
 
 from ._base import BaseHandler
 
-from synapse.api.events.room import InviteJoinEvent, RoomMemberEvent
+from synapse.api.events.room import RoomMemberEvent
 from synapse.api.constants import Membership
 from synapse.util.logutils import log_function
 from synapse.federation.pdu_codec import PduCodec
-from synapse.api.errors import SynapseError
 from synapse.util.async import run_on_reactor
-from synapse.types import EventID
 
-from twisted.internet import defer, reactor
+from twisted.internet import defer
 
 import logging
 

synapse/state.py

@@ -19,8 +19,6 @@ from twisted.internet import defer
 from synapse.util.logutils import log_function
 from synapse.util.async import run_on_reactor
 
-from synapse.types import EventID
-
 from collections import namedtuple
 
 import copy

synapse/storage/_base.py

@@ -14,8 +14,6 @@
 # limitations under the License.
 import logging
 
-from twisted.internet import defer
-
 from synapse.api.errors import StoreError
 from synapse.api.events.utils import prune_event
 from synapse.util.logutils import log_function