diff --git a/synapse/storage/databases/main/metrics.py b/synapse/storage/databases/main/metrics.py
index 14294a0bb8..595e22982e 100644
--- a/synapse/storage/databases/main/metrics.py
+++ b/synapse/storage/databases/main/metrics.py
@@ -248,89 +248,6 @@ class ServerMetricsStore(EventPushActionsWorkerStore, SQLBaseStore):
(count,) = cast(Tuple[int], txn.fetchone())
return count
- async def count_r30_users(self) -> Dict[str, int]:
- """
- Counts the number of 30 day retained users, defined as:-
- * Users who have created their accounts more than 30 days ago
- * Where last seen at most 30 days ago
- * Where account creation and last_seen are > 30 days apart
-
- Returns:
- A mapping of counts globally as well as broken out by platform.
- """
-
- def _count_r30_users(txn: LoggingTransaction) -> Dict[str, int]:
- thirty_days_in_secs = 86400 * 30
- now = int(self._clock.time())
- thirty_days_ago_in_secs = now - thirty_days_in_secs
-
- sql = """
- SELECT platform, COUNT(*) FROM (
- SELECT
- users.name, platform, users.creation_ts * 1000,
- MAX(uip.last_seen)
- FROM users
- INNER JOIN (
- SELECT
- user_id,
- last_seen,
- CASE
- WHEN user_agent LIKE '%%Android%%' THEN 'android'
- WHEN user_agent LIKE '%%iOS%%' THEN 'ios'
- WHEN user_agent LIKE '%%Electron%%' THEN 'electron'
- WHEN user_agent LIKE '%%Mozilla%%' THEN 'web'
- WHEN user_agent LIKE '%%Gecko%%' THEN 'web'
- ELSE 'unknown'
- END
- AS platform
- FROM user_ips
- ) uip
- ON users.name = uip.user_id
- AND users.appservice_id is NULL
- AND users.creation_ts < ?
- AND uip.last_seen/1000 > ?
- AND (uip.last_seen/1000) - users.creation_ts > 86400 * 30
- GROUP BY users.name, platform, users.creation_ts
- ) u GROUP BY platform
- """
-
- results = {}
- txn.execute(sql, (thirty_days_ago_in_secs, thirty_days_ago_in_secs))
-
- for row in txn:
- if row[0] == "unknown":
- pass
- results[row[0]] = row[1]
-
- sql = """
- SELECT COUNT(*) FROM (
- SELECT users.name, users.creation_ts * 1000,
- MAX(uip.last_seen)
- FROM users
- INNER JOIN (
- SELECT
- user_id,
- last_seen
- FROM user_ips
- ) uip
- ON users.name = uip.user_id
- AND appservice_id is NULL
- AND users.creation_ts < ?
- AND uip.last_seen/1000 > ?
- AND (uip.last_seen/1000) - users.creation_ts > 86400 * 30
- GROUP BY users.name, users.creation_ts
- ) u
- """
-
- txn.execute(sql, (thirty_days_ago_in_secs, thirty_days_ago_in_secs))
-
- (count,) = cast(Tuple[int], txn.fetchone())
- results["all"] = count
-
- return results
-
- return await self.db_pool.runInteraction("count_r30_users", _count_r30_users)
-
async def count_r30v2_users(self) -> Dict[str, int]:
"""
Counts the number of 30 day retained users, defined as users that:
|