Revert "Create build.yml"

This reverts commit d976d82974.

.github/workflows/build.yml

@@ -1,17 +0,0 @@
-name: Java CI
-
-on: [push]
-
-jobs:
-  build:
-    runs-on: ubuntu-latest
-
-    steps:
-      - uses: actions/checkout@v2
-      - name: Set up JDK 11
-        uses: actions/setup-java@v2
-        with:
-          java-version: '11'
-          distribution: 'adopt'
-      - name: Build with Maven
-        run: mvn --batch-mode --update-snapshots verify