remove windows+gcc test (for now)

.github/workflows/unittest-gcc.yml

@@ -1,50 +0,0 @@
-# GitHub action to build LAMMPS on Windows with GCC and Ninja
-name: "Native Windows Compilation /w GCC and Unit Tests using Ninja"
-
-on:
-  push:
-    branches: [collected-small-changes]
-
-jobs:
-  build:
-    name: Windows Compilation Test
-    if: ${{ github.repository == 'akohlmey/lammps' }}
-    runs-on: windows-latest
-
-    steps:
-    - name: Checkout repository
-      uses: actions/checkout@v2
-      with:
-        fetch-depth: 2
-
-    - name: Select Python version
-      uses: actions/setup-python@v2
-      with:
-        python-version: '3.10'
-
-    - name: Building LAMMPS via CMake
-      shell: bash
-      run: |
-        choco install ninja
-        python3 -m pip install numpy
-        python3 -m pip install pyyaml
-        cmake -C cmake/presets/windows.cmake \
-              -D PKG_PYTHON=on \
-              -S cmake -B build \
-              -D BUILD_SHARED_LIBS=on \
-              -D LAMMPS_EXCEPTIONS=on \
-              -D ENABLE_TESTING=on \
-              -D CMAKE_BUILD_TYPE=Release \
-              -G Ninja
-        cmake --build build
-
-    - name: Run LAMMPS executable
-      shell: bash
-      run: |
-        ./build/lmp.exe -h
-        ./build/lmp.exe -in bench/in.lj
-
-    - name: Run Unit Tests
-      working-directory: build
-      shell: bash
-      run: ctest -V