Remove travis build script

Signed-off-by: trivernis <trivernis@protonmail.com>

.travis.yml

@@ -1,20 +0,0 @@
-dist: bionic
-
-language: bash
-
-services:
-  - docker
-
-git:
-  submodules: false
-
-before_install:
-  - echo -e "machine github.com\n  login $GIT_USER\n  password $GIT_PW" > ~/.netrc
-  - git submodule set-url msg-rpc https://github.com/flotte-goes-smart/msg-rpc.git
-  - git submodule init
-  - git submodule update
-script:
-  - docker login -u="$DOCKER_USER" -p="$DOCKER_PW" https://flotte-docker-registry.spdns.org/
-  - docker build -t flotte-user-managment .
-  - docker tag flotte-user-managment flotte-docker-registry.spdns.org/flotte-user-managment
-  - docker push flotte-docker-registry.spdns.org/flotte-user-managment:latest