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-rw-r--r--changelog.d/6857.misc1
-rw-r--r--synapse/events/__init__.py24
2 files changed, 2 insertions, 23 deletions
diff --git a/changelog.d/6857.misc b/changelog.d/6857.misc
new file mode 100644
index 0000000000..08aa80bcd9
--- /dev/null
+++ b/changelog.d/6857.misc
@@ -0,0 +1 @@
+Refactoring work in preparation for changing the event redaction algorithm.
diff --git a/synapse/events/__init__.py b/synapse/events/__init__.py
index 92f76703b3..89d41d82b6 100644
--- a/synapse/events/__init__.py
+++ b/synapse/events/__init__.py
@@ -21,8 +21,7 @@ import six
 
 from unpaddedbase64 import encode_base64
 
-from synapse.api.errors import UnsupportedRoomVersionError
-from synapse.api.room_versions import KNOWN_ROOM_VERSIONS, EventFormatVersions
+from synapse.api.room_versions import EventFormatVersions
 from synapse.types import JsonDict
 from synapse.util.caches import intern_dict
 from synapse.util.frozenutils import freeze
@@ -408,27 +407,6 @@ class FrozenEventV3(FrozenEventV2):
         return self._event_id
 
 
-def room_version_to_event_format(room_version):
-    """Converts a room version string to the event format
-
-    Args:
-        room_version (str)
-
-    Returns:
-        int
-
-    Raises:
-        UnsupportedRoomVersionError if the room version is unknown
-    """
-    v = KNOWN_ROOM_VERSIONS.get(room_version)
-
-    if not v:
-        # this can happen if support is withdrawn for a room version
-        raise UnsupportedRoomVersionError()
-
-    return v.event_format
-
-
 def event_type_from_format_version(format_version):
     """Returns the python type to use to construct an Event object for the
     given event format version.