Import upstream v0.16.22, stripped

Upstream commit: 474dd0229cb20cf513036619781ed97bd8073c3f
Enterprise-only files removed or emptied: 63
Enterprise-only snippets removed: 117 in 50 files
Dangling module declarations removed: 5
Cargo edits turning enterprise off: 14
Verification: clean
Enterprise feature gates left for rebuilt features: 19 in 18 files

Produced by tools/fork/strip.py. The full report is in docs/fork/strip-reports/ on main.

crates/managesieve/src/op/logout.rs

@@ -0,0 +1,21 @@
+/*
+ * SPDX-FileCopyrightText: 2020 Stalwart Labs LLC <[email protected]>
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-SEL
+ */
+
+use tokio::io::{AsyncRead, AsyncWrite};
+
+use crate::core::{Session, StatusResponse};
+
+impl<T: AsyncRead + AsyncWrite> Session<T> {
+    pub async fn handle_logout(&mut self) -> trc::Result<Vec<u8>> {
+        trc::event!(
+            ManageSieve(trc::ManageSieveEvent::Logout),
+            SpanId = self.session_id,
+            Elapsed = trc::Value::Duration(0)
+        );
+
+        Ok(StatusResponse::ok("Stalwart ManageSieve bids you farewell.").into_bytes())
+    }
+}