made Net a static class

src/macros/rpc/RPC.hx

@@ -71,7 +71,7 @@ class RPC {
         }
 
         return macro {
-            kernel.net.Net.instance.registerProto($v{proto},(pack)->{
+            kernel.net.Net.registerProto($v{proto},(pack)->{
                 $a{exprs}
             });
         };

src/macros/rpc/RPCBase.hx

@@ -14,7 +14,7 @@ abstract class RPCBase {
     }
 
     private function _performRequest(func: String, args: Array<Dynamic>):Promise<Dynamic> {
-        return Net.instance.sendAndAwait(id, this._proto, {
+        return Net.sendAndAwait(id, this._proto, {
             func: func,
             // args: args
         }).map((res) -> {