Remove Bandit and CodeQL jobs (#5734)

.github/workflows/bandit.yml

-# GitHub Actions Bandit Workflow
-
-name: Bandit
-
-on:
-  pull_request:
-    branches: [ main ]
-
-  workflow_dispatch:
-
-jobs:
-  build:
-    runs-on: ubuntu-latest
-
-    steps:
-      - uses: actions/checkout@v2
-
-      # Task will fail if any high-severity issues are found
-      # Ignoring submodules
-      - name: Run Bandit Security Analysis
-        run: |
-              python -m pip install bandit
-              python -m bandit -r . -x ./scripts -lll

.github/workflows/codeql.yml

-# GitHub Actions CodeQL Workflow
-
-name: CodeQL
-
-on:
-  pull_request:
-    branches: [ main ]
-
-  workflow_dispatch:
-
-jobs:
-  build:
-    runs-on: ubuntu-latest
-
-    steps:
-      - uses: actions/checkout@v2
-
-      - name: Initialize CodeQL
-        uses: github/codeql-action/init@v1
-        with:
-          languages: python, cpp
-
-      - name: Install Ninja
-        run: |
-              sudo apt-get update -y
-              sudo apt-get install -y ninja-build
-
-      - name: Update submodules
-        run: git submodule update --init --recursive
-
-      - name: Install Torch
-        run: |
-              python -m pip install cmake
-              python -m pip install --pre torch -f https://download.pytorch.org/whl/nightly/cpu/torch_nightly.html
-              sudo ln -s /usr/bin/ninja /usr/bin/ninja-build
-
-      - name: Build TorchVision
-        run: python setup.py develop --user
-
-      # If any code scanning alerts are found, they will be under Security -> CodeQL
-      # Link: https://github.com/pytorch/vision/security/code-scanning
-      - name: Perform CodeQL Analysis
-        uses: github/codeql-action/analyze@v1