Move flake8 check to github actions (#309)

* Update and rename pythonpackage.yml to flake8.yml

* Delete flake8.yml

* Update flake8.yml

.github/workflows/flake8.yml

+name: flake8
+
+on: [push]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+    strategy:
+      max-parallel: 4
+      matrix:
+        python-version: [3.6, 3.7]
+
+    steps:
+    - uses: actions/checkout@v1
+    - name: Set up Python ${{ matrix.python-version }}
+      uses: actions/setup-python@v1
+      with:
+        python-version: ${{ matrix.python-version }}
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        pip install .
+    - name: Lint with flake8
+      run: |
+        pip install flake8
+        flake8 .

azure/flake8.yml

-queue:
-  name: Hosted Ubuntu 1604
-  timeoutInMinutes: 10
-
-trigger:
-  batch: true
-  branches:
-    include:
-    - master
-
-variables:
-  python.version: '3.7'
-
-steps:
-
-- task: UsePythonVersion@0
-  displayName: 'Use Python $(python.version)'
-  inputs:
-    versionSpec: '$(python.version)'
-
-- script: 'azure/install_dependencies.sh'
-  displayName: 'Install dependencies'
-
-- script: 'pip install flake8 && flake8 .'
-  displayName: Flake8