remove flake8 and suggest pycqa/flake8
diff --git a/pre_commit_hooks/removed.py b/pre_commit_hooks/removed.py
new file mode 100644
index 0000000..9710b2d
--- /dev/null
+++ b/pre_commit_hooks/removed.py
@@ -0,0 +1,15 @@
+import sys
+from typing import Optional
+from typing import Sequence
+
+
+def main(argv: Optional[Sequence[str]] = None) -> int:
+    argv = argv if argv is not None else sys.argv[1:]
+    hookid, new_hookid, url = argv
+    raise SystemExit(
+        f'`{hookid}` has been removed -- use `{new_hookid}` from {url}',
+    )
+
+
+if __name__ == '__main__':
+    exit(main())