Removed redundant dependencies

Updated goetas-webservices/xsd2php-runtime to 2.2 and removed goetas/xsd2php dependency and other redundant dependencies

Author: kikmak42

composer.json

@@ -11,11 +11,7 @@
         "ext-json": "*",
         "ext-simplexml": "*",
         "ext-xmlwriter": "*",
-        "goetas/xsd2php": "^2.0", 
-        "goetas-webservices/xsd2php-runtime":"^0.2",
-        "goetas-webservices/xsd-reader": "^0.1",
-        "jms/serializer": "serializer-master-dev as 1.0",
-        "symfony/yaml": "^3.1"
+        "goetas-webservices/xsd2php-runtime":"^0.2.2"
     },
     "require-dev": {
         "phpunit/phpunit": "~4.0",
@@ -26,9 +22,5 @@
     },
     "autoload-dev": {
         "classmap": ["tests"]
-    },
-    "repositories": [{
-        "type": "vcs",
-        "url": "https://github.com/goetas/serializer.git"
-    }]    
+    }   
 }