dont build docker image in travis

.travis.yml

@@ -8,16 +8,6 @@ install:
 script:
 - cargo build
 - "./build_static.sh server"
-after_success:
-- docker login -e $DOCKER_EMAIL -u $DOCKER_USER -p $DOCKER_PASS
-- export REPO=clipboardsync/server
-- export TAG=`if [ "$TRAVIS_BRANCH" == "master" ]; then echo "latest"; else echo $TRAVIS_BRANCH
-  ; fi`
-- docker build -f Dockerfile -t $REPO:$COMMIT .
-- docker tag $REPO:$COMMIT $REPO:$TAG
-- docker tag $REPO:$COMMIT $REPO:travis-$TRAVIS_BUILD_NUMBER
-- echo "$DOCKER_PASSWORD" | docker login -u "$DOCKER_USERNAME" --password-stdin
-- docker push $REPO
 env:
   global:
   - COMMIT=${TRAVIS_COMMIT::8}