ci(github): remove OS dependencies step when testing

Author: Linkid

.github/workflows/tests.yml

@@ -30,18 +30,6 @@ jobs:
         with:
           python-version: ${{ matrix.python-version }}
 
-      - name: Install os dependencies
-        run: |
-          sudo apt-get -qq update
-          sudo apt-get install -yq \
-            libportmidi-dev \
-            libsdl-image1.2-dev \
-            libsdl-mixer1.2-dev \
-            libsdl-ttf2.0-dev \
-            libsdl1.2-dev \
-            libsoundtouch-dev \
-            libvorbis-dev
-
       - name: Install python dependencies
         run: |
           pip install coverage pytest pytest-cov