GHA/windows: drop Windows CE jobs from CI

In preparation for the removal of Windows CE support.

These jobs were also using a macOS runner, which is a waste. And it'd be
too much effort to move them over to Windows or Linux.

Follow-up to 8491e6574c #17379

Closes #17924

.github/workflows/windows.yml

@@ -671,116 +671,6 @@ jobs:
             make -C bld examples
           fi
 
-  wince:
-    name: "mingw32ce, ${{ matrix.build == 'cmake' && 'CM' || 'AM' }} 4.4.0-arm schannel"
-    runs-on: 'macos-latest'
-    timeout-minutes: 10
-    env:
-      MAKEFLAGS: -j 4
-      TOOLCHAIN_VERSION: '0.59.1'
-      MATRIX_BUILD: '${{ matrix.build }}'
-    strategy:
-      matrix:
-        build: [autotools, cmake]
-      fail-fast: false
-    steps:
-      - name: 'install packages'
-        if: ${{ matrix.build == 'autotools' }}
-        timeout-minutes: 5
-        run: |
-          # shellcheck disable=SC2181,SC2034
-          while [[ $? == 0 ]]; do for i in 1 2 3; do if brew update && brew install automake libtool; then break 2; else echo Error: wait to try again; sleep 10; fi; done; false Too many retries; done
-
-      - name: 'cache compiler (mingw32ce)'
-        uses: actions/cache@d4323d4df104b026a6aa633fdb11d772146be0bf # v4
-        id: cache-compiler
-        with:
-          path: ~/opt/mingw32ce
-          key: ${{ runner.os }}-mingw32ce-${{ env.TOOLCHAIN_VERSION }}-amd64
-
-      - name: 'install compiler (mingw32ce)'
-        if: ${{ steps.cache-compiler.outputs.cache-hit != 'true' }}
-        timeout-minutes: 5
-        run: |
-          cd ~
-          curl --disable --fail --silent --show-error --connect-timeout 15 --max-time 120 --retry 3 --retry-connrefused \
-            --location --proto-redir =https "https://downloads.sourceforge.net/cegcc/cegcc/${TOOLCHAIN_VERSION}/cegcc_mingw32ce_snowleopard_r1397.tar.bz2" | tar -x
-          ls -l
-
-      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
-        with:
-          persist-credentials: false
-
-      - name: 'configure'
-        run: |
-          PATH="$HOME/opt/mingw32ce/bin:$PATH"
-          if [ "${MATRIX_BUILD}" = 'cmake' ]; then
-            cmake -B bld -G Ninja \
-              -DCMAKE_SYSTEM_NAME=WindowsCE \
-              -DCMAKE_SYSTEM_VERSION=8.0 \
-              -DCMAKE_SYSTEM_PROCESSOR=arm \
-              -DCMAKE_C_FLAGS='-O3 -DNDEBUG' \
-              -DCMAKE_C_COMPILER_TARGET=arm-mingw32ce \
-              -DCMAKE_C_COMPILER=arm-mingw32ce-gcc \
-              -DCMAKE_RC_COMPILER=arm-mingw32ce-windres \
-              -DMINGW32CE_LIBRARY_DIR="$HOME/opt/mingw32ce/arm-mingw32ce/lib" \
-              -DCMAKE_IGNORE_PREFIX_PATH=/opt/homebrew \
-              -DCMAKE_UNITY_BUILD=ON -DCMAKE_UNITY_BUILD_BATCH_SIZE=50 \
-              -DBUILD_SHARED_LIBS=ON -DBUILD_STATIC_LIBS=ON -DBUILD_STATIC_CURL=OFF \
-              -DCURL_WERROR=ON \
-              -DCURL_USE_SCHANNEL=ON \
-              -DCURL_USE_LIBPSL=OFF
-          else
-            autoreconf -fi
-            mkdir bld && cd bld && ../configure --disable-dependency-tracking --enable-unity --enable-warnings --enable-werror \
-              --host=arm-mingw32ce \
-              --with-schannel \
-              --without-libpsl \
-              --disable-shared
-          fi
-
-      - name: 'configure log'
-        if: ${{ !cancelled() }}
-        run: cat bld/config.log bld/CMakeFiles/CMake*.yaml 2>/dev/null || true
-
-      - name: 'curl_config.h'
-        run: |
-          echo '::group::raw'; cat bld/lib/curl_config.h || true; echo '::endgroup::'
-          grep -F '#define' bld/lib/curl_config.h | sort || true
-
-      - name: 'build'
-        run: |
-          PATH="$HOME/opt/mingw32ce/bin:$PATH"
-          if [ "${MATRIX_BUILD}" = 'cmake' ]; then
-            cmake --build bld
-          else
-            make -C bld
-          fi
-
-      - name: 'curl info'
-        run: |
-          find . \( -name '*.exe' -o -name '*.dll' -o -name '*.a' \) -exec file '{}' \;
-
-      - name: 'build tests'
-        if: ${{ matrix.build == 'cmake' }}  # skip for autotools to save time
-        run: |
-          PATH="$HOME/opt/mingw32ce/bin:$PATH"
-          if [ "${MATRIX_BUILD}" = 'cmake' ]; then
-            cmake --build bld --target testdeps
-          else
-            make -C bld -C tests
-          fi
-
-      - name: 'build examples'
-        if: ${{ matrix.build == 'cmake' }}  # skip for autotools to save time
-        run: |
-          PATH="$HOME/opt/mingw32ce/bin:$PATH"
-          if [ "${MATRIX_BUILD}" = 'cmake' ]; then
-            cmake --build bld --target curl-examples
-          else
-            make -C bld examples
-          fi
-
   msvc:
     name: 'msvc, CM ${{ matrix.arch }}-${{ matrix.plat }} ${{ matrix.name }}'
     runs-on: ${{ matrix.image || 'windows-latest' }}