CI: Drop broken template building

We don't use the template and its `wry` feature in this fork.
Remove it now that `ubuntu-latest` no longer has the necessary
packages which requires a tedious and complicated upgrade
of the `wry` "nonsense".  This is attempted upstream at:
https://togithub.com/rust-mobile/xbuild/pull/210

.github/workflows/ci.yml

@@ -31,74 +31,3 @@ jobs:
       with:
         name: ${{ matrix.host }}-x
         path: bin/x${{ matrix.host == 'windows-latest' && '.exe' || '' }}
-
-  build-template:
-    strategy:
-      fail-fast: false
-      matrix:
-        host:
-        - ubuntu-latest
-        - macos-latest
-        - windows-latest
-        opt:
-        - debug
-        - release
-        target:
-        - platform: linux
-          arch: x64
-        - platform: macos
-          arch: x64
-        - platform: windows
-          arch: x64
-        - platform: android
-          arch: arm64
-        - platform: ios
-          arch: arm64
-
-    runs-on: ${{ matrix.host }}
-    needs: build
-    steps:
-    - name: install rust
-      uses: hecrj/setup-rust-action@v1
-      with:
-        rust-version: stable
-
-    - name: install x
-      uses: actions/download-artifact@v3
-      with:
-        name: ${{ matrix.host }}-x
-    - run: chmod +x ./x
-      if: ${{ matrix.host == 'ubuntu-latest' || matrix.host == 'macos-latest' }}
-
-    - name: install llvm ubuntu
-      if: ${{ matrix.host == 'ubuntu-latest' }}
-      run: sudo apt-get update && sudo apt-get install llvm
-
-    - name: install llvm macos
-      if: ${{ matrix.host == 'macos-latest' }}
-      run: |
-        brew install llvm
-        echo "/usr/local/opt/llvm/bin" >> $GITHUB_PATH
-
-    - name: install java
-      uses: actions/setup-java@v2
-      with:
-        distribution: temurin
-        java-version: 11
-
-    - name: install linux dependencies
-      if: ${{ matrix.host == 'ubuntu-latest' }}
-      run: sudo apt-get update && sudo apt-get install libwebkit2gtk-4.0-dev libgtk-3-dev squashfs-tools
-
-    - name: create project
-      run: ./x new template
-
-    # only linux can target linux as it is not clear what that even is exactly
-    # glibc/musl gtk/qt x11/wayland
-    # windows doesn't support posix symlinks so can't cross compile to macos/ios
-    - name: build project
-      if: >
-        !(matrix.host == 'macos-latest' && matrix.target.platform == 'linux' ||
-          matrix.host == 'windows-latest' && contains(fromJson('["linux", "macos", "ios"]'), matrix.target.platform))
-      run: ../x build --platform ${{ matrix.target.platform }} --arch ${{ matrix.target.arch }} --${{ matrix.opt }}
-      working-directory: template