Remove Android CI unit testing infrastructure

Initially we had 3 of 4 Android CI jobs running the tests. Various
problems caused us to disable testing in 2 of those 3 jobs. Now
we're dealing with the last Android CI job failing to run the tests.
Because this is blocking CI and because the value of running these
tests it not especially high, I am removing this testing
infrastructure. We can reconsider this decision in the future if a
more reliable solution is found.

This is a reversion of most of 2386653.

.github/workflows/ci.yml

@@ -75,9 +75,6 @@ jobs:
             flags: -GNinja -DCMAKE_ANDROID_ARCH_ABI=x86 -DCMAKE_SYSTEM_NAME=Android -DCMAKE_SYSTEM_VERSION=21 -DCMAKE_ANDROID_NDK=$ANDROID_NDK_ROOT -DBUILD_SHARED_LIBS=ON -DCMAKE_ANDROID_STL_TYPE=c++_shared -DSFML_RUN_DISPLAY_TESTS=OFF -DSFML_RUN_AUDIO_DEVICE_TESTS=OFF
             arch: x86
             api: 21
-            libcxx: i686-linux-android/libc++_shared.so
-            emuarch: x86
-            # emuapi: 29 # Removing this causes the tests to not run. This works around an issue that causes the test step to hang indefinitely.
           type: { name: Release }
         - platform: { name: Android, os: ubuntu-22.04 }
           config:
@@ -85,9 +82,6 @@ jobs:
             flags: -GNinja -DCMAKE_ANDROID_ARCH_ABI=x86_64 -DCMAKE_SYSTEM_NAME=Android -DCMAKE_SYSTEM_VERSION=24 -DCMAKE_ANDROID_NDK=$ANDROID_NDK_ROOT -DBUILD_SHARED_LIBS=ON -DCMAKE_ANDROID_STL_TYPE=c++_shared -DSFML_RUN_DISPLAY_TESTS=OFF -DSFML_RUN_AUDIO_DEVICE_TESTS=OFF
             arch: x86_64
             api: 24
-            libcxx: x86_64-linux-android/libc++_shared.so
-            emuarch: x86_64
-            # emuapi: 34 # Removing this causes the tests to not run. This works around an issue that causes the Network module tests to fail.
           type: { name: Release }
         - platform: { name: Android, os: ubuntu-22.04 }
           config:
@@ -95,7 +89,6 @@ jobs:
             flags: -GNinja -DCMAKE_ANDROID_ARCH_ABI=armeabi-v7a -DCMAKE_SYSTEM_NAME=Android -DCMAKE_SYSTEM_VERSION=29 -DCMAKE_ANDROID_NDK=$ANDROID_NDK_ROOT -DBUILD_SHARED_LIBS=ON -DCMAKE_ANDROID_STL_TYPE=c++_shared
             arch: armeabi-v7a
             api: 29
-            # There are no emulators available for armeabi-v7a so we skip running the tests (we still build them) by not specifying emuapi
           type: { name: Debug, flags: -DCMAKE_BUILD_TYPE=Debug }
         - platform: { name: Android, os: ubuntu-22.04 }
           config:
@@ -103,10 +96,6 @@ jobs:
             flags: -GNinja -DCMAKE_ANDROID_ARCH_ABI=arm64-v8a -DCMAKE_SYSTEM_NAME=Android -DCMAKE_SYSTEM_VERSION=33 -DCMAKE_ANDROID_NDK=$ANDROID_NDK_ROOT -DBUILD_SHARED_LIBS=ON -DCMAKE_ANDROID_STL_TYPE=c++_shared -DSFML_RUN_DISPLAY_TESTS=OFF -DSFML_RUN_AUDIO_DEVICE_TESTS=OFF
             arch: arm64-v8a
             api: 33
-            libcxx: aarch64-linux-android/libc++_shared.so
-            emuarch: arm64-v8a
-            emuapi: 27
-            emuflags: -qemu -machine virt
           type: { name: Debug, flags: -DCMAKE_BUILD_TYPE=Debug }
 
 
@@ -141,8 +130,6 @@ jobs:
       if: runner.os == 'Linux' && matrix.platform.name != 'Android'
       run: sudo apt-get remove -y libasound2
 
-    # LIBCXX_SHARED_SO is the path used by CMake to copy the necessary runtime library to the AVD
-    # We find it by searching ANDROID_NDK_ROOT for file paths ending with matrix.config.libcxx
     - name: Install Android Components
       if: matrix.platform.name == 'Android'
       run: |
@@ -150,8 +137,6 @@ jobs:
         echo "y" | ${ANDROID_SDK_ROOT}/cmdline-tools/latest/bin/sdkmanager --install "ndk;26.1.10909125"
         ANDROID_NDK_ROOT=$(echo $ANDROID_SDK_ROOT/ndk/$ANDROID_NDK_VERSION)
         echo "ANDROID_NDK_ROOT=$ANDROID_NDK_ROOT" >> $GITHUB_ENV
-        LIBCXX_SHARED_SO=$(find $ANDROID_NDK_ROOT -path \*/${{ matrix.config.libcxx }})
-        echo "LIBCXX_SHARED_SO=$LIBCXX_SHARED_SO" >> $GITHUB_ENV
 
     - name: Install macOS Tools
       if: runner.os == 'macOS'
@@ -250,47 +235,6 @@ jobs:
           gcovr -r $GITHUB_WORKSPACE -x build/coverage.out -s -f 'src/SFML/.*' -f 'include/SFML/.*' ${{ matrix.platform.gcovr_options }} $GITHUB_WORKSPACE
         fi
 
-    - name: Enable KVM
-      if: contains(matrix.platform.name, 'Android') && matrix.config.emuapi
-      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: Cache AVD
-      if: contains(matrix.platform.name, 'Android') && matrix.config.emuapi
-      uses: actions/cache@v4
-      id: avd-cache
-      with:
-        path: |
-          ~/.android/avd/*
-          ~/.android/adb*
-        key: avd-${{ matrix.config.emuarch }}-${{ matrix.config.emuapi }}
-
-    - name: Create AVD and Generate Snapshot for Caching
-      if: contains(matrix.platform.name, 'Android') && matrix.config.emuapi && steps.avd-cache.outputs.cache-hit != 'true'
-      uses: reactivecircus/android-emulator-runner@v2
-      with:
-        api-level: ${{ matrix.config.emuapi }}
-        arch: ${{ matrix.config.emuarch }}
-        force-avd-creation: false
-        emulator-options: -no-window -gpu swiftshader_indirect -noaudio -no-boot-anim -camera-back none ${{ matrix.config.emuflags }}
-        disable-animations: false
-        script: echo "Generated AVD snapshot for caching."
-
-    - name: Test (Android)
-      if: contains(matrix.platform.name, 'Android') && matrix.config.emuapi
-      uses: reactivecircus/android-emulator-runner@v2
-      with:
-        api-level: ${{ matrix.config.emuapi }}
-        arch: ${{ matrix.config.emuarch }}
-        force-avd-creation: false
-        emulator-options: -no-snapshot-save -no-window -gpu swiftshader_indirect -noaudio -no-boot-anim -camera-back none ${{ matrix.config.emuflags }}
-        disable-animations: true
-        script: |
-          cmake --build build --config ${{ matrix.type.name == 'Debug' && 'Debug' || 'Release' }} --target prepare-android-files
-          ctest --test-dir build --output-on-failure -C ${{ matrix.type.name == 'Debug' && 'Debug' || 'Release' }} --repeat until-pass:3
-
     - name: Upload Coverage Report to Coveralls
       if: matrix.type.name == 'Debug' && github.repository == 'SFML/SFML' && !contains(matrix.platform.name, 'iOS') && !contains(matrix.platform.name, 'Android')  && !contains(matrix.platform.name, 'arm64') # Disable upload in forks
       uses: coverallsapp/github-action@v2