diff --git a/synapse/storage/schema/delta/28/event_push_actions.sql b/synapse/storage/schema/delta/28/event_push_actions.sql
deleted file mode 100644
index 4d519849df..0000000000
--- a/synapse/storage/schema/delta/28/event_push_actions.sql
+++ /dev/null
@@ -1,27 +0,0 @@
-/* Copyright 2015 OpenMarket Ltd
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-CREATE TABLE IF NOT EXISTS event_push_actions(
- room_id TEXT NOT NULL,
- event_id TEXT NOT NULL,
- user_id TEXT NOT NULL,
- profile_tag VARCHAR(32),
- actions TEXT NOT NULL,
- CONSTRAINT event_id_user_id_profile_tag_uniqueness UNIQUE (room_id, event_id, user_id, profile_tag)
-);
-
-
-CREATE INDEX event_push_actions_room_id_event_id_user_id_profile_tag on event_push_actions(room_id, event_id, user_id, profile_tag);
-CREATE INDEX event_push_actions_room_id_user_id on event_push_actions(room_id, user_id);
diff --git a/synapse/storage/schema/delta/28/events_room_stream.sql b/synapse/storage/schema/delta/28/events_room_stream.sql
deleted file mode 100644
index 36609475f1..0000000000
--- a/synapse/storage/schema/delta/28/events_room_stream.sql
+++ /dev/null
@@ -1,20 +0,0 @@
-/* Copyright 2016 OpenMarket Ltd
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
-*/
-
-/** Using CREATE INDEX directly is deprecated in favour of using background
- * update see synapse/storage/schema/delta/33/access_tokens_device_index.sql
- * and synapse/storage/registration.py for an example using
- * "access_tokens_device_index" **/
-CREATE INDEX events_room_stream on events(room_id, stream_ordering);
diff --git a/synapse/storage/schema/delta/28/public_roms_index.sql b/synapse/storage/schema/delta/28/public_roms_index.sql
deleted file mode 100644
index 6c1fd68c5b..0000000000
--- a/synapse/storage/schema/delta/28/public_roms_index.sql
+++ /dev/null
@@ -1,20 +0,0 @@
-/* Copyright 2016 OpenMarket Ltd
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
-*/
-
-/** Using CREATE INDEX directly is deprecated in favour of using background
- * update see synapse/storage/schema/delta/33/access_tokens_device_index.sql
- * and synapse/storage/registration.py for an example using
- * "access_tokens_device_index" **/
-CREATE INDEX public_room_index on rooms(is_public);
diff --git a/synapse/storage/schema/delta/28/receipts_user_id_index.sql b/synapse/storage/schema/delta/28/receipts_user_id_index.sql
deleted file mode 100644
index cb84c69baa..0000000000
--- a/synapse/storage/schema/delta/28/receipts_user_id_index.sql
+++ /dev/null
@@ -1,22 +0,0 @@
-/* Copyright 2015, 2016 OpenMarket Ltd
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-/** Using CREATE INDEX directly is deprecated in favour of using background
- * update see synapse/storage/schema/delta/33/access_tokens_device_index.sql
- * and synapse/storage/registration.py for an example using
- * "access_tokens_device_index" **/
-CREATE INDEX receipts_linearized_user ON receipts_linearized(
- user_id
-);
diff --git a/synapse/storage/schema/delta/28/upgrade_times.sql b/synapse/storage/schema/delta/28/upgrade_times.sql
deleted file mode 100644
index 3e4a9ab455..0000000000
--- a/synapse/storage/schema/delta/28/upgrade_times.sql
+++ /dev/null
@@ -1,21 +0,0 @@
-/* Copyright 2016 OpenMarket Ltd
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-/*
- * Stores the timestamp when a user upgraded from a guest to a full user, if
- * that happened.
- */
-
-ALTER TABLE users ADD COLUMN upgrade_ts BIGINT;
diff --git a/synapse/storage/schema/delta/28/users_is_guest.sql b/synapse/storage/schema/delta/28/users_is_guest.sql
deleted file mode 100644
index 21d2b420bf..0000000000
--- a/synapse/storage/schema/delta/28/users_is_guest.sql
+++ /dev/null
@@ -1,22 +0,0 @@
-/* Copyright 2016 OpenMarket Ltd
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-ALTER TABLE users ADD is_guest SMALLINT DEFAULT 0 NOT NULL;
-/*
- * NB: any guest users created between 27 and 28 will be incorrectly
- * marked as not guests: we don't bother to fill these in correctly
- * because guest access is not really complete in 27 anyway so it's
- * very unlikley there will be any guest users created.
- */
|