Remove nyholm/psr7 from require-dev (#928)

* Remove nyholm/psr7 from require-dev

* cs

Author: Nyholm

.travis.yml

@@ -1,7 +1,7 @@
 language: php
 sudo: false
 
-php: 7.0
+php: 7.2
 
 install:
   - composer update --prefer-stable --prefer-dist

Tests/Provider/AbstractHttpProviderTest.php

@@ -18,17 +18,11 @@
 use Geocoder\Query\GeocodeQuery;
 use Geocoder\Query\ReverseQuery;
 use Http\Client\HttpClient;
-use Http\Discovery\ClassDiscovery;
 use Http\Mock\Client;
 use PHPUnit\Framework\TestCase;
 
 class AbstractHttpProviderTest extends TestCase
 {
-    public static function setUpBeforeClass()
-    {
-        ClassDiscovery::prependStrategy('\Nyholm\Psr7\Httplug\DiscoveryStrategy');
-    }
-
     public function testHttpClientGetter()
     {
         $client = $this->getMockBuilder(Client::class)->disableOriginalConstructor()->getMock();

composer.json

@@ -26,7 +26,7 @@
         "symfony/stopwatch": "~2.5",
         "php-http/message": "^1.0",
         "php-http/mock-client": "^1.0",
-        "nyholm/psr7": "^0.2.2"
+        "nyholm/psr7": "^1.0"
     },
     "autoload": {
         "psr-4": { "Geocoder\\Http\\": "" },