remove gitlab ci

.Build/.htaccess

.Build/gitlab-ci/README.md

.Build/gitlab-ci/extension-gitlab-ci.yml

.Build/gitlab-ci/php-cs-fixer/Extension.php

.Build/gitlab-ci/php-cs-fixer/Project.php

.Build/gitlab-ci/project-gitlab-ci.yml

.Build/gitlab-ci/typo3-rector/Extension.php

.Build/gitlab-ci/typo3-rector/Project.php

.Build/gitlab-ci/typoscript-lint/Extension.yml

.Build/gitlab-ci/typoscript-lint/Project.yml

.Build/grunt/Gruntfile.js

.Build/grunt/README.md

.Build/grunt/package.json