ci/travis: remove no longer needed travis keywords

Highlighted by the new build config validation feature we can see that
sudo is no longer needed and on_cancel is not a valid keyowrk for IRC
notifications.

Signed-off-by: Stefan Schmidt <s.schmidt@samsung.com>
Reviewed-by: Marcel Hollerbach <mail@marcel-hollerbach.de>
Differential Revision: https://phab.enlightenment.org/D10665

.travis.yml

@@ -5,7 +5,6 @@ cache:
   directories:
     - $HOME/cachedir
     - $HOME/.ccache
-sudo: required
 dist: trusty
 
 osx_image: xcode10.2
@@ -126,7 +125,6 @@ notifications:
       - "chat.freenode.net#edevelop"
     on_success: change
     on_failure: always
-    on_cancel: never
     template:
       - "TravisCI build %{build_number} in branch %{branch}: %{result} - %{message} (%{elapsed_time})"
       - "Commit: %{commit_subject} (%{commit}) from %{author}"