No real reason to not CI branches before PRs are created

.travis.yml

diff --git a/.travis.yml b/.travis.yml
index a73c8dd..d807342 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,6 +1,3 @@
-# we only CI the master, release branches, tags and PRs
-if: tag IS present OR type = pull_request OR ((branch = master OR branch =~ release-*) AND type = push)
-
 language: python
 # cache package wheels (1 cache per python version)
 cache: pip