Merge pull request #12319 from Carreau/travis-cleanup

.travis.yml

@@ -10,8 +10,6 b' addons:'
 python:
     - 3.6
 
-sudo: false
-
 env:
   global:
     - PATH=$TRAVIS_BUILD_DIR/pandoc:$PATH
@@ -71,20 +69,16 b' matrix:'
     - arch: amd64
       python: "3.7"
       dist: xenial
-      sudo: true
     - arch: amd64
       python: "3.8"
       dist: xenial
-      sudo: true
     - arch: amd64
       python: "nightly"
       dist: xenial
-      sudo: true
     - arch: arm64
       python: "nightly"
       dist: bionic
       env: ARM64=True
-      sudo: true
     - os: osx
       language: generic
       python: 3.6
@@ -107,7 +101,7 b' deploy:'
     secure: Y/Ae9tYs5aoBU8bDjN2YrwGG6tCbezj/h3Lcmtx8HQavSbBgXnhnZVRb2snOKD7auqnqjfT/7QMm4ZyKvaOEgyggGktKqEKYHC8KOZ7yp8I5/UMDtk6j9TnXpSqqBxPiud4MDV76SfRYEQiaDoG4tGGvSfPJ9KcNjKrNvSyyxns=
   file: dist/*
   file_glob: true
-  skip_cleanup: true
+  cleanup: false
   on:
     repo: ipython/ipython
     all_branches: true  # Backports are released from e.g. 5.x branch