Remove `HomeServer.get_datastore()` (#12031)

The presence of this method was confusing, and mostly present for backwards
compatibility. Let's get rid of it.

Part of #11733

1 files changed, 1 insertions, 1 deletions

diff --git a/synapse/handlers/cas.py b/synapse/handlers/cas.py

index 5d8f6c50a9..7163af8004 100644
--- a/synapse/handlers/cas.py
+++ b/synapse/handlers/cas.py
@@ -61,7 +61,7 @@ class CasHandler:
     def __init__(self, hs: "HomeServer"):
         self.hs = hs
         self._hostname = hs.hostname
-        self._store = hs.get_datastore()
+        self._store = hs.get_datastores().main
         self._auth_handler = hs.get_auth_handler()
         self._registration_handler = hs.get_registration_handler()