ci: Remove the sphinx legacy

.github/workflows/CICD.yml

@@ -402,11 +402,6 @@ jobs:
           - { os: ubuntu-latest , features: feat_os_unix }
     steps:
     - uses: actions/checkout@v2
-    - name: Install/setup prerequisites
-      shell: bash
-      run: |
-        ## Install/setup prerequisites
-        sudo apt-get -y update ; sudo apt-get -y install python3-sphinx ;
     - name: Install `rust` toolchain
       uses: actions-rs/toolchain@v1
       with:

.github/workflows/GnuTests.yml

@@ -38,7 +38,7 @@ jobs:
       run: |
         ## Install dependencies
         sudo apt-get update
-        sudo apt-get install autoconf autopoint bison texinfo gperf gcc g++ gdb python-pyinotify python3-sphinx jq
+        sudo apt-get install autoconf autopoint bison texinfo gperf gcc g++ gdb python-pyinotify jq
     - name: Build binaries
       shell: bash
       run: |