Remove CodeQL

I don't think we've had a lot of actionable errors or warnings from it, and it takes 30 minutes per push to master.

.github/workflows/codeql-analysis.yml

@@ -1,43 +0,0 @@
-name: "CodeQL"
-
-on:
-  push:
-    branches: [ master ]
-  schedule:
-    - cron: '18 22 * * 2'
-
-jobs:
-  analyze:
-    name: Analyze
-    runs-on: ubuntu-latest
-    permissions:
-      actions: read
-      contents: read
-      security-events: write
-
-    strategy:
-      fail-fast: true
-      matrix:
-        language: [ 'cpp', 'javascript', 'python' ]
-
-    steps:
-    - name: Checkout repository
-      uses: actions/checkout@v2
-
-    # Initializes the CodeQL tools for scanning.
-    - name: Initialize CodeQL
-      uses: github/codeql-action/init@v1
-      with:
-        languages: ${{ matrix.language }}
-        # If you wish to specify custom queries, you can do so here or in a config file.
-        # By default, queries listed here will override any specified in a config file.
-        # Prefix the list here with "+" to use these queries and those in the config file.
-        # queries: ./path/to/local/query, your-org/your-repo/queries@main
-
-    # Autobuild attempts to build any compiled languages  (C/C++, C#, or Java).
-    # If this step fails, then you should remove it and run the build manually (see below)
-    - name: Autobuild
-      uses: github/codeql-action/autobuild@v1
-      
-    - name: Perform CodeQL Analysis
-      uses: github/codeql-action/analyze@v1