Revert "Set up Azure Pipelines for Linux and Windows"

This reverts commit e4974c7ff5.

_azure-pipelines/template-linux.yml

@@ -1,33 +0,0 @@
-jobs:
-- job: Linux
-  pool:
-    vmImage: 'Ubuntu-16.04'
-  strategy:
-    matrix:
-      Python27:
-        PYTHON_VERSION: '2.7'
-      Python34:
-        PYTHON_VERSION: '3.4'    
-      Python35:
-        PYTHON_VERSION: '3.5'
-      Python36:
-        PYTHON_VERSION: '3.6'    
-      Python37:
-        PYTHON_VERSION: '3.7'          
-  steps:
-  - task: UsePythonVersion@0
-    inputs:
-      versionSpec: $(PYTHON_VERSION)
-    displayName: 'Install Python'
-  - script: |
-      make
-      make test-readme
-      make ci
-  - script: |
-      pipenv run codecov
-    displayName: 'Coverage'
-  - task: PublishTestResults@2
-    displayName: 'Publish test results'
-    inputs:
-      testResultsFiles: 'report.xml'
-      testRunTitle: Python $(PYTHON_VERSION)    

_azure-pipelines/template-windows.yml

@@ -1,36 +0,0 @@
-jobs:
-- job: Windows
-  pool:
-    vmImage: 'vs2017-win2016'
-  strategy:
-    matrix:
-      Python27:
-        PYTHON_VERSION: '2.7'
-      Python34:
-        PYTHON_VERSION: '3.4'    
-      Python35:
-        PYTHON_VERSION: '3.5'   
-      Python36:
-        PYTHON_VERSION: '3.6'        
-      Python37:
-        PYTHON_VERSION: '3.7'      
-  steps:
-  - task: UsePythonVersion@0
-    inputs:
-      versionSpec: $(PYTHON_VERSION)
-      architecture: 'x64'
-    displayName: 'Install Python'
-  - script: |
-      make init
-      python -m pip install --upgrade pip wheel
-    displayName: 'Ensure latest'
-  - script: |
-      make
-      pipenv install -e .[socks] --skip-lock
-  - script: |
-      make coverage
-    displayName: 'Test script'      
-  - script: |
-      pipenv run codecov -f coverage.xml
-    displayName: 'Coverage'
-

azure-pipelines.yml

@@ -1,4 +0,0 @@
-jobs:
-- template: _azure-pipelines/template-linux.yml
-
-- template: _azure-pipelines/template-windows.yml