chore: remove redundant files

Signed-off-by: Bart Jaskulski <bjaskulski@protonmail.com>

.gitlab-ci.yml

-variables:
-  DISABLE_FUNCTIONAL: 1
-  DISABLE_ACCEPTANCE: 1
-  DISABLE_PHP_5_5: 1
-
-fake job:
-  image: composer:2.0
-  rules:
-    - if: '$CI_PIPELINE_SOURCE == "merge_request_event"'
-      when: never
-    - if: $CI_PROJECT_NAME == 'gitlab-ci'
-      when: always
-  script:
-    - echo "It works"

composer.json

-{
-    "name": "wpdesk/gitlab-ci",
-    "authors": [
-        {
-            "name": "Grzegorz",
-            "email": "grola@wpdesk.pl"
-        }
-    ],
-    "prefer-stable": true,
-    "minimum-stability": "dev",
-    "require": {
-        "php": ">=5.5"
-    },
-    "require-dev": {
-        "phpunit/phpunit": "<7",
-        "wp-coding-standards/wpcs": "^0.14.1",
-        "squizlabs/php_codesniffer": "^3.0.2",
-        "mockery/mockery": "*",
-        "10up/wp_mock": "*",
-        "wimg/php-compatibility": "^8"
-    },
-    "scripts": {
-        "test": "echo composer is alive",
-        "phpcs": "phpcs",
-        "phpunit-unit": "phpunit --configuration phpunit-unit.xml --coverage-text --colors=never",
-        "phpunit-unit-fast": "phpunit --configuration phpunit-unit.xml --no-coverage",
-        "phpunit-integration": "phpunit --configuration phpunit-integration.xml --coverage-text --colors=never",
-        "phpunit-integration-fast": "phpunit --configuration phpunit-integration.xml --no-coverage",
-
-	    "docs": "apigen generate"
-    }
-}

phpunit-integration.xml

-<phpunit bootstrap="tests/integration/bootstrap.php"
-         backupGlobals="false"
-     >
-    <testsuites>
-        <testsuite name="tests">
-            <directory prefix="test-" suffix=".php">./tests/integration</directory>
-        </testsuite>
-    </testsuites>
-
-    <filter>
-        <whitelist>
-            <directory suffix=".php">classes</directory>
-        </whitelist>
-    </filter>
-
-    <logging>
-        <log type="junit" target="build-coverage/report.junit.xml"/>
-        <log type="coverage-html" target="build-coverage/coverage" charset="UTF-8" yui="true" highlight="true"/>
-        <log type="coverage-text" target="build-coverage/coverage.txt"/>
-        <log type="coverage-clover" target="build-coverage/clover.xml"/>
-    </logging>
-    <php>
-        <env name="WP_DEVELOP_DIR" value="/tmp/wordpress-develop"/>
-        <env name="WC_DEVELOP_DIR" value="/tmp/woocommerce"/>
-    </php>
-
-</phpunit>
\ No newline at end of file

phpunit-unit.xml

-<phpunit bootstrap="tests/unit/bootstrap.php">
-    <testsuites>
-        <testsuite>
-            <directory prefix="test-" suffix=".php">./tests/unit/</directory>
-        </testsuite>
-    </testsuites>
-
-    <filter>
-        <whitelist>
-            <directory suffix=".php">classes</directory>
-        </whitelist>
-    </filter>
-
-    <logging>
-        <log type="junit" target="build-coverage/report.junit.xml"/>
-        <log type="coverage-html" target="build-coverage/coverage" charset="UTF-8" yui="true" highlight="true"/>
-        <log type="coverage-text" target="build-coverage/coverage.txt"/>
-        <log type="coverage-clover" target="build-coverage/clover.xml"/>
-    </logging>
-
-</phpunit>
\ No newline at end of file

tests/integration/bootstrap.php

-<?php
-// disable xdebug backtrace
-if ( function_exists( 'xdebug_disable' ) ) {
-	xdebug_disable();
-}
-
-if ( getenv( 'DEPENDENT_PLUGINS_DIR' ) !== false ) {
-	define( 'DEPENDENT_PLUGINS_DIR', getenv( 'DEPENDENT_PLUGINS_DIR' ) );
-} else {
-	define( 'DEPENDENT_PLUGINS_DIR', '/tmp/plugins' );
-}
-
-
-if ( getenv( 'PLUGIN_PATH' ) !== false ) {
-	define( 'PLUGIN_PATH', getenv( 'PLUGIN_PATH' ) );
-} else {
-	define( 'PLUGIN_PATH', __DIR__ . DIRECTORY_SEPARATOR . '..' . DIRECTORY_SEPARATOR . '..' . DIRECTORY_SEPARATOR );
-}
-
-require_once( getenv( 'WP_DEVELOP_DIR' ) . '/tests/phpunit/includes/functions.php' );
-
-tests_add_filter( 'muplugins_loaded', function () {
-}, 100 );
-
-putenv('WP_TESTS_DIR=' . getenv( 'WP_DEVELOP_DIR' ) . '/tests/phpunit');
-require_once( getenv( 'WC_DEVELOP_DIR' ) . '/tests/bootstrap.php' );
\ No newline at end of file

tests/unit/bootstrap.php

-<?php
-/**
- * PHPUnit bootstrap file
- */
-
-require_once __DIR__ . '/../../vendor/autoload.php';
-
-error_reporting( E_ALL );
-
-if ( getenv( 'PLUGIN_PATH' ) !== false ) {
-	define( 'PLUGIN_PATH', getenv( 'PLUGIN_PATH' ) );
-} else {
-	define( 'PLUGIN_PATH', __DIR__ . DIRECTORY_SEPARATOR . '..' . DIRECTORY_SEPARATOR . '..' . DIRECTORY_SEPARATOR );
-}
-
-if ( getenv( 'ABSPATH' ) !== false ) {
-	define( 'ABSPATH', getenv( 'ABSPATH' ) );
-} else {
-	define( 'ABSPATH', PLUGIN_PATH . '..' . DIRECTORY_SEPARATOR . '..' . DIRECTORY_SEPARATOR );
-}
-
-WP_Mock::setUsePatchwork( true );
-WP_Mock::bootstrap();