Remove deprecated functionality

Author: kelunik

LICENSE

@@ -1,6 +1,6 @@
 The MIT License (MIT)
 
-Copyright (c) 2017-2019 amphp
+Copyright (c) 2017-2021 amphp (Niklas Keller, Aaron Piotrowski, and contributors)
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

README.md

@@ -6,7 +6,7 @@
 
 **Required PHP Version**
 
-- PHP 7.0+
+- PHP 7.1+
 
 ## Installation
 
@@ -32,26 +32,8 @@ class BarTest extends AsyncTestCase
     {
         $socket = yield Socket\connect('tcp://localhost:12345');
         yield $socket->write('foobar');
-        
+
         $this->assertSame('foobar', yield ByteStream\buffer($socket));
     }
 }
 ```
-
-#### Deprecated Functionality
-
-This package also provides a PHPUnit `TestListener` to reset the global event loop after each test, but this is deprecated.
-
-```xml
-<phpunit>
-    <!-- ... -->
-
-    <!-- DEPRECATED, use AsyncTestCase instead -->
-    <listeners>
-        <!-- DEPRECATED, use AsyncTestCase instead --> 
-        <listener class="Amp\PHPUnit\LoopReset" />
-    </listeners>
-
-    <!-- ... -->
-</phpunit>
-```

composer.json

@@ -1,6 +1,6 @@
 {
     "name": "amphp/phpunit-util",
-    "homepage": "http://amphp.org/phpunit-util",
+    "homepage": "https://amphp.org/phpunit-util",
     "description": "Helper package to ease testing with PHPUnit.",
     "license": "MIT",
     "authors": [
@@ -14,8 +14,7 @@
         }
     ],
     "support": {
-        "issues": "https://github.com/amphp/phpunit-util/issues",
-        "irc": "irc://irc.freenode.org/amphp"
+        "issues": "https://github.com/amphp/phpunit-util/issues"
     },
     "require": {
         "php": ">=7.1",