Removed Travis CI configuration and script

We are no longer building the images with Travis CI.

.travis.yml

@@ -1,32 +0,0 @@
-sudo: required
-language: python
-
-env:
-  - BUILD=release
-  - BUILD=prerelease
-  - BUILD=branches
-  - BUILD=special
-
-git:
-  depth: 5
-
-services:
-  - docker
-
-install:
-  - docker-compose pull --parallel
-  - docker-compose build
-
-script:
-  - docker-compose run netbox ./manage.py test
-
-after_script:
-  - docker-compose down
-
-after_success:
-  - docker login -u="$DOCKER_USERNAME" -p="$DOCKER_PASSWORD"
-  - ./build-all.sh --push
-
-notifications:
-  slack:
-    secure: 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

build-all.sh

@@ -1,51 +0,0 @@
-#!/bin/bash
-# Builds all Docker images this project provides
-# Arguments:
-#   BUILD:     The release to build.
-#              Allowed: release, prerelease, branches, special
-#              Default: undefined
-
-echo "▶️ $0 $*"
-
-ALL_BUILDS=("release" "prerelease" "branches" "special")
-BUILDS=("${BUILD:-"${ALL_BUILDS[@]}"}")
-
-echo "⚙️ Configured builds: ${BUILDS[*]}"
-
-if [ -n "${DEBUG}" ]; then
-  export DEBUG
-fi
-
-ERROR=0
-
-for BUILD in "${BUILDS[@]}"; do
-  echo "🛠 Building '$BUILD' from '$DOCKERFILE'"
-  case $BUILD in
-    release)
-      # build the latest release
-      # shellcheck disable=SC2068
-      ./build-latest.sh $@ || ERROR=1
-      ;;
-    prerelease)
-      # build the latest pre-release
-      # shellcheck disable=SC2068
-      PRERELEASE=true ./build-latest.sh $@ || ERROR=1
-      ;;
-    branches)
-      # build all branches
-      # shellcheck disable=SC2068
-      ./build-branches.sh $@ || ERROR=1
-      ;;
-    *)
-      echo "🚨 Unrecognized build '$BUILD'."
-
-      if [ -z "$DEBUG" ]; then
-        exit 1
-      else
-        echo "⚠️ Would exit here with code '1', but DEBUG is enabled."
-      fi
-      ;;
-  esac
-done
-
-exit $ERROR