Update .travis.yml

Author: Dennis-van-Gils

.travis.yml

@@ -25,9 +25,7 @@ before_install:
   conda install --yes python="3.8" pyqt;
   pip install -r requirements.txt
 
-  #- sudo apt-get install libxcb-xinerama0
-  #- sudo apt-get install -qq libegl1-mesa
-  - sudo apt-get install -y libdbus-1-3 libxkbcommon-x11-0
+  sudo apt-get install -y libdbus-1-3 libxkbcommon-x11-0
 
 script:
   - python demo_A_GUI_full.py simulate