Merge pull request #15860 from timhoffm/auto-backport-of-pr-15851-on-v3.1.x

timhoffm · web-flow · commit 8120ce502818 · 2019-12-07T21:51:52.000+01:00
Backport PR #15851 on branch v3.1.x (ffmpeg is available on default ubuntu packages now)
diff --git a/.travis.yml b/.travis.yml
@@ -22,8 +22,6 @@ addons:
     paths:
     - result_images.tar.bz2
   apt:
-    sources:
-      - sourceline: ppa:jonathonf/ffmpeg-3
     packages:
       - cm-super
       - dvipng
