.travis.yml: always run pipeline on master, regardless of whether the job was triggered via cron or manually

- automatic builds on push are still disabled from https://travis-ci.org/github/awesome-selfhosted/awesome-selfhosted/settings

.travis.yml

@@ -14,7 +14,7 @@ before_install:
 
 script:
   - 'echo "DEBUG: $TRAVIS_BRANCH - $TRAVIS_EVENT_TYPE - $TRAVIS_PULL_REQUEST"'
-  - 'if [[ "$TRAVIS_BRANCH" == "master" && "$TRAVIS_EVENT_TYPE" == "cron" ]]; then make check_all; fi'
+  - 'if [[ "$TRAVIS_BRANCH" == "master" ]]; then make check_all; fi'
   - 'if [ "$TRAVIS_PULL_REQUEST" != "false" ]; then make check_pr; fi'
 
 notifications: