build-multiplatform checks android only on java 17

And we don't need tests since we have a different way to test that

.github/workflows/buildMultiplatform.yml

@@ -11,45 +11,11 @@ on:
 
 jobs:
 
-  # Job to execute code checks and unit tests on the project source
-  code-checks:
-    name: Check code and run unit tests (Java ${{ matrix.java_version }})
-    strategy:
-      matrix:
-        java_version:
-          - 11
-          - 17
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v3
-
-      - uses: actions/setup-java@v3
-        with:
-          cache: 'gradle'
-          distribution: 'temurin'
-          java-version: ${{ matrix.java_version }}
-
-      - name: Setup Gradle
-        uses: gradle/gradle-build-action@v2.11.1
-
-      - name: Setup Android SDK
-        uses: android-actions/setup-android@v3
-
-      - name: Compile kotlin and build classes
-        run: ./gradlew classes
-
-      - name: Run code checks
-        run: ./gradlew check
-
-      - name: Run unit tests
-        run: ./gradlew --no-build-cache cleanTest test tests:test
-
   # Job to build the android files on a Ubuntu host
   build-android:
     strategy:
       matrix:
         java_version:
-          - 11
           - 17
     runs-on: ubuntu-latest
     name: Build Android (Java ${{ matrix.java_version }})