ci(kotlin): remove permanently disabled job (#7538)

There is no reason to keep this around if we are not running it. We can
always look it up in Git's history.

.github/workflows/_kotlin.yml

@@ -74,67 +74,3 @@ jobs:
           name: Android debug APK
           path: |
             ./kotlin/android/app/build/outputs/apk/*
-
-  ui-test:
-    # FIXME
-    # Currently flaky, see https://github.com/firezone/firezone/pull/4178#issuecomment-2094815889
-    if: false
-    name: ui-test-api-${{ matrix.api-level }}
-    strategy:
-      fail-fast: false
-      matrix:
-        include:
-          # TODO: These currently time out and/or fail intermittently.
-          # https://github.com/ReactiveCircus/android-emulator-runner/issues/385
-          - api-level: 26
-          - api-level: 29
-    # Android SDK tools hardware accel is available only on Linux runners
-    runs-on: ubuntu-22.04
-    steps:
-      - name: Free Disk Space (Ubuntu)
-        uses: jlumbroso/free-disk-space@main
-        with:
-          tool-cache: false
-          android: false
-          dotnet: true
-          haskell: true
-          large-packages: false
-          swap-storage: true
-      - uses: actions/checkout@v4
-      - uses: ./.github/actions/setup-android
-      # Test on x86_64 only -- prevents compiling for other targets.
-      # See https://github.com/mozilla/rust-android-gradle?tab=readme-ov-file#specifying-local-targets
-      - run: echo 'rust.targets=x86' > local.properties
-      # See https://github.com/ReactiveCircus/android-emulator-runner?tab=readme-ov-file#running-hardware-accelerated-emulators-on-linux-runners
-      - name: Enable KVM group perms
-        run: |
-          echo 'KERNEL=="kvm", GROUP="kvm", MODE="0666", OPTIONS+="static_node=kvm"' | sudo tee /etc/udev/rules.d/99-kvm4all.rules
-          sudo udevadm control --reload-rules
-          sudo udevadm trigger --name-match=kvm
-      - name: AVD cache
-        uses: actions/cache@v4
-        id: avd-cache
-        with:
-          path: |
-            ~/.android/avd/*
-            ~/.android/adb*
-          key: avd-${{ matrix.api-level }}
-      - name: create AVD and generate snapshot for caching
-        if: steps.avd-cache.outputs.cache-hit != 'true'
-        uses: reactivecircus/android-emulator-runner@v2
-        with:
-          api-level: ${{ matrix.api-level }}
-          force-avd-creation: false
-          emulator-options: -no-window -gpu swiftshader_indirect -noaudio -no-boot-anim -camera-back none
-          disable-animations: false
-          script: echo "Generated AVD snapshot for caching."
-          working-directory: ./kotlin/android
-      - name: Run Tests
-        uses: reactivecircus/android-emulator-runner@v2
-        with:
-          api-level: ${{ matrix.api-level }}
-          force-avd-creation: false
-          emulator-options: -no-snapshot-save -no-window -gpu swiftshader_indirect -noaudio -no-boot-anim -camera-back none
-          disable-animations: true
-          script: ./gradlew --stacktrace connectedCheck
-          working-directory: ./kotlin/android