Revert the desktop hotkey: a new crate needs a Cargo.lock this machine cannot write

`42e06da` added `tauri-plugin-global-shortcut` to Cargo.toml without updating
Cargo.lock, and every cargo invocation in CI passes `--locked`. Both desktop
jobs failed on the same line before compiling anything:

    error: cannot update the lock file ... because --locked was passed

So this says nothing about whether the code is right — clippy never ran. The
gate did exactly its job.

There is no Rust toolchain on this workstation (rule 10 — CI verifies), and a
lockfile is the one artifact CI is deliberately forbidden to generate. Hand-
writing the entries is not a real option: it needs the exact checksum and the
whole transitive tree, and a wrong checksum fails harder than a missing one.

Reverted rather than left red, because a red `dev` blocks everything behind it
and the Android half of #1899 is green and unaffected at c8318c3. The work is
intact in 42e06da and comes back with `git revert 5e0c...` once the lockfile
exists — nothing here needs rewriting.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01K3MMqUtzX1TJgA1oypvm1c

desktop/src-tauri/src/lib.rs

@@ -9,7 +9,6 @@
 //! remains here is the Tauri command surface (`commands`), desktop integration
 //! (menu-entry install for the Linux AppImage), the in-app updater, and boot.
 
-mod capture;
 mod commands;
 mod integration;
 mod update;
@@ -81,10 +80,6 @@ pub fn run() {
         // build without a signing key still starts normally and simply reports that
         // updates aren't configured.
         .plugin(tauri_plugin_updater::Builder::new().build())
-        // The quick-capture hotkey. Registering the combination itself happens in
-        // `setup`, once the store is open and can be asked which one to use — the
-        // plugin only has to exist before then.
-        .plugin(tauri_plugin_global_shortcut::Builder::new().build())
         // Attachment bytes are served to the webview from the local blob store
         // (M10.7f). Registered on the BUILDER because a scheme has to exist before
         // the webview is created; the directory it reads from arrives later, in
@@ -123,9 +118,6 @@ pub fn run() {
             // in this directory saying which one the user picked (issue 2183).
             update::adopt_installer_channel(&db, &dir);
             sweep_local_trash(&db);
-            // Before the store is handed to the app: `restore` needs to read the
-            // stored shortcut out of it, and after `manage` the Db has moved.
-            capture::restore(app.handle(), &db);
             app.manage(db);
             // Attachment bytes live beside the database, filed by content hash, so a
             // synced image is readable with no network (M10.7d).
@@ -184,9 +176,6 @@ pub fn run() {
             update::update_channel_set,
             update::update_check,
             update::update_install,
-            capture::capture_shortcut_get,
-            capture::capture_shortcut_set,
-            capture::capture_done,
         ])
         .run(tauri::generate_context!())
         .expect("error while running the ThoughtSync desktop app");