Remove default proxies if there's no controller

The default proxies are not needed because the value of proxies[name]
is passed to a helper map() function which checks if it's undefined.

They also prevent the view from being used directly, without a
controller.

Also, they were only defined for root proxies, not for nested ones
(nested ones were actually included as root and never used).

src/writers/view-writer.js

@@ -379,9 +379,7 @@ class ViewWriter extends Writer {
         }
 
         render() {
-          const proxies = ${this.className}.Controller !== ${this.className} ? transformProxies(this.props.children) : {
-            ==>${this[_].composeProxiesDefault()}<==
-          }
+          const proxies = transformProxies(this.props.children)
 
           return (
             <span>
@@ -422,12 +420,6 @@ class ViewWriter extends Writer {
     return escape(css.trim())
   }
 
-  _composeProxiesDefault() {
-    return this[_].sockets.map((socket) => {
-      return `'${socket}': [],`
-    }).join('\n')
-  }
-
   _composeChildImports() {
     const imports = this[_].children.map((child) => {
       return `import ${child.className} from './${child.className}'`