BUG: Remove unnecessary matrix options for notebook testing

Author: thewtex

.github/workflows/build-test-publish.yml

@@ -256,22 +256,6 @@ jobs:
       max-parallel: 3
       matrix:
         os: [ubuntu-18.04, windows-2019, macos-10.15]
-        include:
-           - os: ubuntu-18.04
-             c-compiler: "gcc"
-             cxx-compiler: "g++"
-             itk-git-tag: "v5.2rc03"
-             cmake-build-type: "MinSizeRel"
-           - os: windows-2019
-             c-compiler: "cl.exe"
-             cxx-compiler: "cl.exe"
-             itk-git-tag: "v5.2rc03"
-             cmake-build-type: "Release"
-           - os: macos-10.15
-             c-compiler: "clang"
-             cxx-compiler: "clang++"
-             itk-git-tag: "v5.2rc03"
-             cmake-build-type: "MinSizeRel"
 
     steps:
       - uses: actions/checkout@v1