Revert.

.github/workflows/ubuntu.yml

@@ -23,27 +23,4 @@ jobs:
       - name: "Build with Gradle"
         uses: gradle/gradle-build-action@v2.8.0
         with:
-          arguments: build
-  build-llvm-17:
-      name: "build with llvm 17"
-      runs-on: ubuntu-22.04
-      timeout-minutes: 10
-      steps:
-          - name: "Checkout"
-            uses: actions/checkout@v2
-          - name: "Validate Gradle Wrapper"
-            uses: gradle/wrapper-validation-action@v1
-          - name: "Set up JDK 17"
-            uses: actions/setup-java@v2
-            with:
-                java-version: "17"
-                distribution: "temurin"
-          - name: "Install LLVM 17"
-            uses: KyleMayes/install-llvm-action@v1.8.3
-            with:
-                ubuntu-version: 22.04
-                version: 17.0.1
-          - name: "Build with Gradle"
-            uses: gradle/gradle-build-action@v2.8.0
-            with:
-                arguments: build
+          arguments: build