Delete .travis.yml

.travis.yml

-language: generic
-sudo: required
-dist: trusty
-os:
-    - linux
-env:
-    - COMPILE_TYPE=CPU DOCKERFILE_CPU=$PWD/tools/Dockerfile.ci
-services:
-    - docker
-before_install:
-    - docker build -f ${DOCKERFILE_CPU} -t serving-img:${COMPILE_TYPE} .
-install:
-    - if [ $COMPILE_TYPE == "CPU" ]; then docker run -it -v $PWD:/Serving serving-img:${COMPILE_TYPE} /bin/bash Serving/tools/serving_check_style.sh ; fi;
-    - docker run -it -v $PWD:/Serving serving-img:${COMPILE_TYPE} /bin/bash Serving/tools/serving_build.sh $COMPILE_TYPE