feat: Remove command goctl rpc proto (#1665)

* Fix goctl completion expression

* Fix code generation error if the pkg of pb/grpc is same to zrpc call client pkg

* Remove deprecated comment on action goctl rpc new

* Remove zrpc code generation on action goctl rpc proto

* Remove zrpc code generation on action goctl rpc proto

* Remove Generator interface

Co-authored-by: anqiansong <anqiansong@bytedance.com>

tools/goctl/rpc/generator/prototmpl.go

@@ -12,6 +12,7 @@ import (
 const rpcTemplateText = `syntax = "proto3";
 
 package {{.package}};
+option go_package="./{{.package}}";
 
 message Request {
   string ping = 1;