Disable tests on Linux for now

Author: alexeyzimarev

.github/workflows/build-dev.yml

@@ -12,18 +12,6 @@ on:
       - '*'
 
 jobs:
-#  test-netcore-linux:
-#    runs-on: ubuntu-latest
-#
-#    steps:
-#      - uses: actions/checkout@v1
-#      - uses: actions/setup-dotnet@v1
-#        with:
-#          dotnet-version: '3.1.201'
-#
-#      - name: Run tests netcoreapp3.1
-#        run: dotnet test -c Release -f netcoreapp3.1
-
   test-win:
     runs-on: windows-latest