Removed travis-ci configuration file.

.travis.yml

-language: cpp
-sudo: required
-os: osx
-osx_image: xcode7.3
-cache: ccache
-
-cache:
-  directories:
-  - /usr/local
-
-before_install:
-  - brew update
-  - brew install ccache
-  - brew install octave
-
-script:
-  - make check-octave
-  - ./success.sh

README.md

-![](https://travis-ci.org/DynareTeam/dates.svg?branch=master)
\ No newline at end of file