Removed not needed composer settings.

Author: TheLevti

composer.json

@@ -57,7 +57,7 @@
         "mikey179/vfsStream": "^1.6",
         "php-mock/php-mock-phpunit": "^2.1",
         "phpunit/phpunit": "^7.4",
-        "predis/predis": "^1",
+        "predis/predis": "^1.1",
         "squizlabs/php_codesniffer": "^3.3"
     },
     "suggest": {
@@ -78,10 +78,6 @@
         "fix-cs": "vendor/bin/phpcbf --standard=PSR2 classes/ tests/"
     },
     "config": {
-        "preferred-install": "dist",
-        "sort-packages": true,
-        "optimize-autoloader": true
-    },
-    "minimum-stability": "dev",
-    "prefer-stable": true
+        "sort-packages": true
+    }
 }