Remove unused GitHub workflow files from docs (#24011)

docs/documentation/.github/workflows/test-external-links.yml

@@ -1,26 +0,0 @@
-# This workflow will build a Java project with Maven
-# For more information see: https://help.github.com/actions/language-and-framework-guides/building-and-testing-java-with-maven
-
-name: External Links
-
-on:
-  push:
-    branches: [ main ]
-  pull_request:
-    branches: [ main ]
-  schedule:
-    - cron: '0 5 * * *'
-jobs:
-  test:
-    name: Verify links
-    runs-on: ubuntu-latest
-    steps:
-    - uses: actions/checkout@v2
-    - name: Set up JDK 1.8
-      uses: actions/setup-java@v1
-      with:
-        java-version: 1.8
-    - name: Build
-      run: mvn install -B -DskipTests
-    - name: Test
-      run: mvn test -B -pl tests -Dtest=ExternalLinksTest

docs/documentation/.github/workflows/test-guides.yml

@@ -1,25 +0,0 @@
-# This workflow will build a Java project with Maven
-# For more information see: https://help.github.com/actions/language-and-framework-guides/building-and-testing-java-with-maven
-
-name: Test
-
-on:
-  push:
-    branches: [ main ]
-  pull_request:
-    branches: [ main ]
-
-jobs:
-  build:
-    name: Verify Keycloak documentation
-    runs-on: ubuntu-latest
-    steps:
-    - uses: actions/checkout@v2
-    - name: Set up JDK 1.8
-      uses: actions/setup-java@v1
-      with:
-        java-version: 1.8
-    - name: Build
-      run: mvn install -B -DskipTests
-    - name: Test
-      run: mvn test -B -pl tests -Dtest=!ExternalLinksTest