Remove obsolete .travis.yml

We no longer use Travis-CI.

Signed-off-by: Simon McVittie <smcv@collabora.com>

.travis.yml

@@ -1,25 +0,0 @@
-language: c
-dist: trusty
-addons:
-  apt:
-    packages:
-      - automake
-      - autotools-dev
-      - libcap-dev
-script:
-  - env NOCONFIGURE=1 ./autogen.sh
-  - mkdir build
-  - cd build && ../configure
-  - make -j 2
-  - make check
-
-notifications:
-  # This is Colin's instance of Homu, in the future
-  # we'll move this to a production cluster.
-  webhooks: http://escher.verbum.org:54856/travis
-  email: false
-
-branches:
-  only:
-    - auto
-