revert win2019 support

build on self-hosted runner

Author: baskiton

.github/workflows/build.yml

@@ -27,6 +27,13 @@ jobs:
         os: [ ubuntu-22.04, windows-latest ]
         python: [ "3.11" ]
         arch: [ "x64" ]
+        include:
+          - os: win2019
+            python: "3.7"
+            arch: "x64"
+          - os: win2019
+            python: "3.7"
+            arch: "x86"
     outputs:
       ver: ${{ steps.build.outputs.ver }}