For #13673, removed Python 3.7

Author: gplsteph

azure-pipelines.yml

@@ -24,18 +24,6 @@ jobs:
   strategy:
     matrix:
       # Define all the platform/python version we need
-      MacPython37:
-        platform: 'osx'  # Short name for us
-        imageName: 'macOS-latest'
-        python.version: '3.7'
-      WinPython37:
-        platform: 'win' # Short name for us
-        imageName: 'windows-latest'
-        python.version: '3.7'
-      LinuxPython37:
-        platform: 'linux'  # Short name for us
-        imageName: 'ubuntu-latest'
-        python.version: '3.7'
       MacPython39:
         platform: 'osx'  # Short name for us
         imageName: 'macOS-latest'