Remove towncrier (#3661)

tools/check_changelog_entries.sh

@@ -1,19 +0,0 @@
-#!/usr/bin/env bash
-
-# This can be run for other remotes than origin with the env vat `RED_REMOTE`
-REMOTE="${RED_REMOTE:-origin}"
-
-if [[ $(git diff "$REMOTE"/V3/develop) ]]; then
-
-  if [[ $(git diff "$REMOTE"/V3/develop -- changelog.d/) ]]; then
-    echo "Found changelog fragments..."
-    exit 0
-  else
-    echo "Error: No new changelog fragments!"
-    exit 1
-  fi
-
-else
-  echo "No changes to need changelog for."
-  exit 0
-fi

tools/primary_deps.ini

@@ -33,7 +33,6 @@ docs =
     Sphinx
     sphinx_rtd_theme
     sphinxcontrib-trio
-    towncrier
 postgres =
     asyncpg
 style =