Clean up test suite

.travis.yml

@@ -3,7 +3,7 @@ language: php
 # lock distro so new future defaults will not break the build
 dist: xenial
 
-matrix:
+jobs:
   include:
     - php: 5.3
       dist: precise
@@ -24,7 +24,7 @@ matrix:
       dist: trusty
       before_install: [] # skip libuv
       install:
-        - composer require phpunit/phpunit:^5 --dev --no-interaction # requires legacy phpunit & skip ./travis-init.sh
+        - composer install # skip ./travis-init.sh
     - name: "Windows"
       os: windows
       language: shell # no built-in php support
@@ -66,8 +66,6 @@ matrix:
     - php: hhvm-3.18
     - os: windows
 
-sudo: false
-
 addons:
   apt:
     packages:

phpunit.xml.dist

@@ -1,15 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 
-<phpunit backupGlobals="false"
-         backupStaticAttributes="false"
-         colors="true"
-         convertErrorsToExceptions="true"
-         convertNoticesToExceptions="true"
-         convertWarningsToExceptions="true"
-         processIsolation="false"
-         stopOnFailure="false"
-         bootstrap="vendor/autoload.php"
->
+<phpunit bootstrap="vendor/autoload.php" colors="true">
     <testsuites>
         <testsuite name="React Test Suite">
             <directory>./tests/</directory>