Remove dependabot PRs and codeql workflow (#2542)

.github/dependabot.yml

@@ -1,16 +0,0 @@
-version: 2
-updates:
-  # Enable version updates for npm on the main appcenter-cli package
-  - package-ecosystem: "npm"
-    # Look for `package.json` and `lock` files in the `root` directory
-    directory: "/"
-    # Check the npm registry for updates every weekday
-    schedule:
-      interval: "weekly"
-    open-pull-requests-limit: 20
-  # Enable version updates for npm on the inner appcenter-file-upload-client-node package
-  - package-ecosystem: "npm"
-    directory: "/appcenter-file-upload-client-node"
-    schedule:
-      interval: "weekly"
-    open-pull-requests-limit: 20

.github/workflows/codeql-analysis.yml

@@ -1,48 +0,0 @@
-name: "Code Scanning - Action"
-
-on:
-  push:
-    branches:
-      - master
-  pull_request:
-    branches:
-      - master
-  schedule:
-    - cron: '0 0 * * 0'
-
-jobs:
-  CodeQL-Build:
-
-    strategy:
-      fail-fast: false
-
-
-    # CodeQL runs on ubuntu-latest, windows-latest, and macos-latest
-    runs-on: ubuntu-latest
-
-    steps:
-    - name: Checkout repository
-      uses: actions/checkout@v2
-
-    # Initializes the CodeQL tools for scanning.
-    - name: Initialize CodeQL
-      uses: github/codeql-action/init@v2
-      with:
-        languages: javascript
-
-    - name: Autobuild
-      uses: github/codeql-action/autobuild@v2
-
-    # ℹ️ Command-line programs to run using the OS shell.
-    # 📚 https://git.io/JvXDl
-
-    # ✏️ If the Autobuild fails above, remove it and uncomment the following three lines
-    #    and modify them (or add more) to build your code if your project
-    #    uses a compiled language
-
-    #- run: |
-    #   make bootstrap
-    #   make release
-
-    - name: Perform CodeQL Analysis
-      uses: github/codeql-action/analyze@v2