Remove full_stack_test build

It's better to have cypress in this repository as @appinteractive said.
There is no additional value in having it in a separate repo.

.travis.yml

@@ -12,7 +12,6 @@ env:
   - DOCKER_COMPOSE_VERSION=1.23.2
 
 before_install:
-  - scripts/run_fullstack_tests.sh # trigger full stack testing in a different repository
   - sudo rm /usr/local/bin/docker-compose
   - curl -L https://github.com/docker/compose/releases/download/${DOCKER_COMPOSE_VERSION}/docker-compose-`uname -s`-`uname -m` > docker-compose
   - chmod +x docker-compose

scripts/run_fullstack_tests.sh

@@ -1,9 +0,0 @@
-#!/usr/bin/env bash
-
-if [[ -v TRAVIS_TOKEN ]]; then
-  # You need a Travis token to trigger the build on our meta repository.
-  # This token will not be available on forks of this repo.
-  curl -L https://raw.githubusercontent.com/Human-Connection/Human-Connection/master/scripts/trigger_build.sh > scripts/trigger_build.sh
-  chmod +x scripts/trigger_build.sh
-  ./scripts/trigger_build.sh
-fi