chore: remove travis

.gitattributes

@@ -6,7 +6,7 @@ tests/ export-ignore
 .gitattributes export-ignore
 .gitignore export-ignore
 .scrutinizer.yml export-ignore
-.travis.yml export-ignore
+
 phpunit.xml.dist export-ignore
 CONTRIBUTING.md export-ignore
 README.md export-ignore

.travis.yml

@@ -1,35 +0,0 @@
-language: php
-
-env:
-  global:
-    SETUP=basic
-
-matrix:
-  include:
-    - php: 5.5.9
-      dist: trusty
-    - php: 5.5
-      dist: trusty
-    - php: 5.6
-      dist: xenial
-      env: PHPUNIT_FLAGS="--coverage-clover build/logs/clover.xml"
-      after_success: wget https://scrutinizer-ci.com/ocular.phar && php ocular.phar code-coverage:upload --format=php-clover build/logs/clover.xml
-    - php: 5.6
-      dist: xenial
-      env: SETUP=lowest
-    - php: hhvm-3.30
-      dist: trusty
-      before_install:
-        - travis_retry composer require "phpunit/phpunit:^5.7.27" --dev --no-update --no-interaction
-        - travis_retry composer require "mockery/mockery:^0.9.11" --dev --no-update --no-interaction
-
-cache:
-  directories:
-    - "$HOME/.composer/cache"
-
-install:
-  - if [[ "$SETUP" = "basic" ]]; then composer install --no-interaction --prefer-dist; fi
-  - if [[ "$SETUP" = "lowest" ]]; then travis_retry composer update --prefer-dist --no-interaction --prefer-lowest --prefer-stable; fi
-
-script:
-  - vendor/bin/phpunit --verbose $PHPUNIT_FLAGS