removed login from install phase

Author: fehguy

.travis.yml

@@ -6,9 +6,6 @@ jdk:
 services:
   - docker
 
-install:  
-  - docker login --email=$DOCKER_HUB_EMAIL --username=$DOCKER_HUB_USERNAME --password=$DOCKER_HUB_PASSWORD
-
 script:
   - mvn clean package
   - if [ $DOCKER_HUB_USERNAME ]; then docker login --email=$DOCKER_HUB_EMAIL --username=$DOCKER_HUB_USERNAME --password=$DOCKER_HUB_PASSWORD && docker build -t $DOCKER_IMAGE_NAME . && if [ ! -z "$TRAVIS_TAG" ]; then docker tag $DOCKER_IMAGE_NAME:latest $DOCKER_IMAGE_NAME:$TRAVIS_TAG; fi && docker push $DOCKER_IMAGE_NAME; fi