Remove circleci config

.circleci/config.yml

@@ -1,36 +0,0 @@
-# PHP CircleCI 2.0 configuration file
-#
-# Check https://circleci.com/docs/2.0/language-php/ for more details
-#
-version: 2
-jobs:
-  build:
-    docker: # run the steps with Docker 
-      - image: circleci/php:7.1-node-browsers
-      
-      # Specify service dependencies here if necessary
-      # CircleCI maintains a library of pre-built images
-      # documented at https://circleci.com/docs/2.0/circleci-images/
-      # - image: circleci/mysql:9.4
-
-    working_directory: ~/repo
-
-    steps:
-      - checkout # special step to check out source code to working directory
-      - run: sudo apt install -y libsqlite3-dev zlib1g-dev
-      - run: sudo docker-php-ext-install zip
-      - run: sudo composer self-update
-      - restore_cache: # special step to restore the dependency cache if `composer.lock` does not change
-          keys:
-            - composer-v1-{{ checksum "composer.lock" }}
-            - composer-v1-
-      - run: 
-        - cp .travis/env.travis.php env.php
-        - composer install --dev --no-interaction --verbose
-      - save_cache: # special step to save the dependency cache with the `composer.lock` cache key template
-          key: composer-v1-{{ checksum "composer.lock" }}
-          paths:
-            - vendor
-        
-      # run tests!
-      - run: vendor/bin/phpunit --debug --verbose