remove github folder

.github/workflows/c-cpp.yml

@@ -1,25 +0,0 @@
-name: C/C++ CI
-
-on:
-  push:
-    branches: [ "main" ]
-  pull_request:
-    branches: [ "main" ]
-
-jobs:
-  build:
-
-    runs-on: ubuntu-latest
-
-    steps:
-    - uses: actions/checkout@v3
-    - name: autoreconf
-      run: autoreconf --install
-    - name: configure
-      run: ./configure
-    - name: make
-      run: make
-    - name: make check
-      run: make check
-    - name: make distcheck
-      run: make distcheck