delete .travis.yml

.travis.yml

-language: cpp
-
-sudo: false
-
-script:
-        - mkdir build
-        - cd build
-        - cmake -DCMAKE_BUILD_TYPE=Release -DBUILD_SHARED_LIBS=OFF -DLLVM_TARGETS_TO_BUILD="all" -G "Unix Makefiles" ..
-        - make -j 8
-
-compiler:
-        - clang
-        - gcc
-
-os:
-        - osx