Delete .travis.yml as we dont use TravisCI anymore

.travis.yml

@@ -1,58 +0,0 @@
-language: php
-dist: bionic
-
-services:
-  - mysql
-
-env:
-  - SYMFONY_DEPRECATIONS_HELPER=disabled APP_ENV=test # Disable deprecation warnings
-
-# Test for all supported PHP versions
-php:
-  #- '7.1'
-  - '7.2'
-  - '7.3'
-  - '7.4'
-
-before_install:
-  # Use a more modern nodejs version, than provided by default
-  - nvm install --lts
-
-install:
-  - composer install -o
-  # Compile assets
-  - yarn install
-  - yarn build
-  - php bin/console --env test doctrine:database:create --if-not-exists -n
-  - php bin/console --env test doctrine:migrations:migrate -n
-  # Load fixtures (We have to disable foreign key checks or we get errors)
-  - mysql -e "SET GLOBAL FOREIGN_KEY_CHECKS=0;"
-  - php bin/console --env test doctrine:fixtures:load -n
-  - mysql -e "SET GLOBAL FOREIGN_KEY_CHECKS=1;"
-
-before_script:
-  # Disable Xdebug on non coverage builds
-  - if [[ $(phpenv version-name) != '7.2' ]]; then phpenv config-rm xdebug.ini ; fi
-
-script:
-  # Only run code coverage on PHP 7.2 to improve performance (code coverage is slower than normal testing)
-  - if [[ $(phpenv version-name) == '7.2' ]]; then php bin/phpunit --coverage-clover=coverage.xml ; fi
-  - if [[ $(phpenv version-name) != '7.2' ]]; then php bin/phpunit ; fi
-
-  # Perform some simple linting if everything is correct
-  - ./bin/console lint:yaml config --parse-tags
-  - ./bin/console lint:twig templates --env=prod
-  - ./bin/console lint:xliff translations
-  # Check if we dont use dependencies with known vulnerabilities
-  - ./bin/console security:check
-  # Check doctrine mapping
-  - ./bin/console doctrine:schema:validate --skip-sync -vvv --no-interaction
-
-  # Static analysis
-  - ./bin/console cache:clear --env dev
-  - composer phpstan
-
-after_success:
-  - if [[ $(phpenv version-name) == '7.2' ]]; then bash <(curl -s https://codecov.io/bash) ; fi
-matrix:
-  fast_finish: true