travis: Remove hostname hack

laanwj · laanwj · commit eb0c52ec1d3f · 2016-08-17T12:03:33.000+02:00
This was required for java, and we no longer use java for the tests.
diff --git a/.travis.yml b/.travis.yml
@@ -1,10 +1,5 @@
 sudo: required
 dist: trusty
-
-#workaround for https://github.com/travis-ci/travis-ci/issues/5227
-addons:
-  hostname: bitcoin-tester
-
 os: linux
 language: generic
 cache:
