Remove tool-adapters from validation as it is outdated and not working anymore

.github/workflows/validation.yml

@@ -110,52 +110,3 @@ jobs:
             -Dorg.apache.commons.logging.Log=org.apache.commons.logging.impl.NoOpLog
         env: 
           MAVEN_OPTS: -Djansi.force=true
-
-  validate_tool_adapters:
-    needs: [validate_framework]
-    name: Tool Adapters
-    runs-on: ubuntu-latest
-    steps:
-      - name: Download Framework Artifact
-        uses: actions/download-artifact@v3
-        with:
-          name: framework
-          path: framework
-      - name: Checkout Tool Adapters
-        uses: actions/checkout@v3
-        with:
-          path: tool_adapters
-          repository: vitruv-tools/Vitruv-Tool-Adapters
-          ref: main
-          fetch-depth: 0
-      - name: Checkout Matching Tool Adapters Branch
-        run: |
-          cd tool_adapters
-          git checkout -B ${{ github.head_ref }} origin/${{ github.head_ref }} || true
-      - name: Cache
-        uses: actions/cache@v3
-        with:
-          path: ~/.m2/repository
-          key: ${{ runner.os }}-m2-${{ hashFiles('**/pom.xml', '**/MANIFEST.MF') }}
-          restore-keys: ${{ runner.os }}-m2
-      - name: Set up JDK
-        uses: actions/setup-java@v3
-        with:
-          distribution: 'temurin'
-          java-version: 17
-      - name: Build and Verify Tools Adapters
-        uses: coactions/setup-xvfb@v1
-        with: 
-          working-directory: ./tool_adapters
-          run: >
-            ./mvnw -B -U package -Dmaven.test.skip=true
-            -Dvitruv.framework.url=file:///${{ github.workspace }}/framework
-            -Dstyle.color=always
-            -Dorg.slf4j.simpleLogger.log.org.apache.maven.cli.transfer.Slf4jMavenTransferListener=warn
-            -Dorg.slf4j.simpleLogger.log.org.eclipse.tycho.core.resolver.DefaultTychoResolver=warn
-            -Dorg.slf4j.simpleLogger.log.org.eclipse.tycho.osgi.configuration.MavenContextConfigurator=warn
-            -Dorg.slf4j.simpleLogger.log.org.eclipse.sisu.equinox.launching.internal.DefaultEquinoxLauncher=warn
-            -Dorg.slf4j.simpleLogger.log.org.eclipse.xtext.maven.XtextGenerateMojo=warn
-            -Dorg.apache.commons.logging.Log=org.apache.commons.logging.impl.NoOpLog
-        env: 
-          MAVEN_OPTS: -Djansi.force=true