ci: Disable translation check

The translation check is creating conflicts with changes done on Weblate
and is superfluous.

.github/workflows/check-translations.yml

@@ -1,16 +0,0 @@
-name: Check translations
-
-on:
-  workflow_dispatch:
-  push:
-  pull_request:
-
-jobs:
-  check-translations:
-    runs-on: ubuntu-latest
-    steps:
-    - name: Checkout repo
-      uses: actions/checkout@v4
-    - run: python3 sync_translations.py
-    - name: "Check that strings files are uptodate, otherwise run 'python3 sync_translations.py'"
-      run: git add -N . && git diff --exit-code

CONTRIBUTING.md

@@ -173,13 +173,13 @@ Remove the `<!--` and `-->` parts and change the text.
 
 ### Adding a translation
 
+The preferred method for translating the app is to use Weblate:
+https://hosted.weblate.org/engage/unexpected-keyboard/
+
 The `res/values-<language_tag>/strings.xml` file must be created by copying the
 default translation in `res/values/strings.xml`, which contain the structure of
 the file and the English strings.
 
-To check that `strings.xml` is formatted correctly, run
-`python sync_translations.py`. This will modify your files.
-
 Store descriptions in `fastlane/metadata/android/` are updated automatically.
 Translating changelogs is not useful.