Remove combined formatting workflow

Use individual language-specific workflows instead

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

.github/workflows/format-check.yml

@@ -1,67 +0,0 @@
-name: Check All Formatting (Combined)
-
-on:
-  push:
-  workflow_dispatch:
-
-jobs:
-  check:
-    runs-on: ubuntu-24.04
-    steps:
-
-    - uses: actions/checkout@v3
-
-    - name: Setup clang-format
-      run: ./formatters/setup-clang-format-docker.sh
-
-    - name: Install dotnet
-      uses: actions/setup-dotnet@v3
-      with:
-          dotnet-version: "8.0.x"
-
-    - name: Install Node and dependencies
-      uses: actions/setup-node@v3
-      with:
-        node-version: "24"
-
-    - name: Install JDK
-      uses: actions/setup-java@v3
-      with:
-        distribution: 'zulu'
-        java-version: "16"
-
-    - name: Install Haxe
-      uses: krdlab/setup-haxe@v1
-      with:
-        haxe-version: '4.3.2'
-    - run: haxelib install formatter
-
-    - name: Install Dart
-      uses: dart-lang/setup-dart@v1
-      with:
-        sdk: '3.8.1'
-
-    - name: Check dart format version
-      run: |
-        dart format --version
-
-    - name: Format
-      run: |
-        ./formatters/format-cpp.sh
-        ./formatters/format-csharp.sh
-        ./formatters/format-dart.sh
-        ./formatters/format-haxe.sh
-        ./formatters/format-java.sh
-        ./formatters/format-ts.sh
-        git diff > format-diff.txt
-
-    - name: Archive formatting result
-      uses: actions/upload-artifact@v4
-      with:
-        name: format-diff
-        path: format-diff.txt
-
-    - name: Fail on format changes
-      run: |
-        git ls-files -m
-        if [[ `git ls-files -m` ]]; then echo "Detected formatting errors!" & exit 1; fi