[ci] remove clang-format workflow

Signed-off-by: Andrei Shkrob <github@shkrob.dev>

.github/workflows/clang-format.yaml

@@ -1,43 +0,0 @@
-name: clang-format
-
-on:
-  push:
-    branches: [ master ]
-    paths:
-      - 'android/app/src/**.java'
-      - '.clang-format'
-      - '.github/workflows/clang-format.yml'
-  pull_request:
-    branches: [ master ]
-    paths:
-      - 'android/app/src/**.java'
-      - '.clang-format'
-      - '.github/workflows/clang-format.yml'
-
-jobs:
-  check-formatting:
-    runs-on: ubuntu-latest
-    continue-on-error: true  # TODO(AB): Remove this line when ready to enforce formatting.
-
-    steps:
-      - uses: actions/checkout@v4
-
-      - name: Install clang-format
-        run: |
-          sudo apt-get update
-          sudo apt-get install -y clang-format-19
-          clang-format-19 --version
-
-      - name: Check Java formatting
-        run: |
-          JAVA_FILES=($(find android/app/src -name '*.java'))
-
-          FORMATTING_ISSUES=$(clang-format-19 --dry-run --Werror $JAVA_FILES 2>&1 || true)
-
-          if [ -n "$FORMATTING_ISSUES" ]; then
-            echo "$FORMATTING_ISSUES"
-            echo ""
-            echo "To fix formatting, please run:"
-            echo "  clang-format -i <file>"
-            exit 1
-          fi