Remove travis setting

.travis.yml

@@ -1,12 +0,0 @@
-language: python
-python:
-  - "3.9"
-env:
-  - DJANGO_VERSION=3.2
-  - DJANGO_VERSION=4.0
-  - DJANGO_VERSION=4.1
-  - DJANGO_VERSION=4.2
-install:
-  - pip install -q Django==$DJANGO_VERSION
-  - pip install -q -r requirements.txt
-script: python manage.py test

lint-and-test.yml

@@ -1,53 +0,0 @@
-name: Lint & Test
-
-on:
-  push:
-    branches: [ main ]
-  pull_request:
-    branches: [ main ]
-
-permissions:
-  contents: read
-
-jobs:
-  build:
-    strategy:
-      matrix:
-        django_version: [2.2, 3.0, 3.1, 3.2, 4.0a1]
-    runs-on: ubuntu-latest
-
-    steps:
-    - uses: actions/checkout@v3
-    
-    - name: Set up Python 3.10
-      uses: actions/setup-python@v3
-      with:
-        python-version: "3.10"
-    
-    - name: Install dependencies
-      run: |
-        python -m pip install --upgrade pip
-        pip install -q Django==${{ matrix.django_version }}
-        pip install flake8 coverage black
-        if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
-    
-    - name: Lint with flake8
-      run: |
-        # stop the build if there are Python syntax errors or undefined names
-        flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
-        # exit-zero treats all errors as warnings. The GitHub editor is 127 chars wide
-        flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics
-    
-    - name: Lint with Black
-      run: |
-        black --check .
-        
-    - name: Run tests
-      run: |
-        coverage3 run --source='./encrypted_fields' manage.py test
-        coverage xml
-        
-    - name: "Upload coverage to Codecov"
-      uses: codecov/codecov-action@v2
-      with:
-        fail_ci_if_error: true