Delete .github/workflows directory

.github/workflows/check.yml

@@ -1,27 +0,0 @@
-name: Check
-
-on:
-  pull_request:
-    branches:
-      - main
-
-jobs:
-  check:
-    runs-on: macos-15
-    steps:
-    - name: Checkout
-      uses: actions/checkout@v4
-    - name: Set up Xcode
-      uses: maxim-lobanov/setup-xcode@v1
-      with:
-        xcode-version: "16.4"
-    - name: XcodeGen
-      uses: xavierLowmiller/xcodegen-action@1.2.4
-      with:
-        spec: project.yml
-        version: 2.43.0
-    - name: Run iOS tests
-      run: |
-        set -o pipefail && xcodebuild test \
-          -scheme bitchatTests_iOS \
-          -destination "platform=iOS Simulator,name=iPhone 16" | xcpretty