Remove duplicate section in build.yml

.github/workflows/build.yml

@@ -19,11 +19,5 @@ jobs:
           java-version: '25'
           distribution: 'temurin'
           cache: 'maven'
-      - name: Cache Maven packages
-        uses: actions/cache@v4
-        with:
-          path: ~/.m2
-          key: ${{ runner.os }}-m2-${{ hashFiles('**/pom.xml') }}
-          restore-keys: ${{ runner.os }}-m2
       - name: Build
         run: mvn -B verify