update package reference

tools/goctl/example/rec.proto

@@ -1,30 +0,0 @@
-syntax = "proto3";
-
-package recommendservice;
-
-message RecArticle {
-    int64 id = 1;
-}
-
-message RecommendRequest {
-    // the id of the request user.
-    int64 uid = 1;
-    // how many top ranked article for this user.
-    int32 topk = 2;
-    // current hour
-    int32 hour = 3;
-    // current minute
-    int32 minute = 4;
-    // the article list.
-    repeated RecArticle articles = 5;
-}
-
-message RecommendResponse {
-    repeated int64 articles = 1;
-}
-
-service RecommendService {
-    // the method to get the topk performers for this user.
-    rpc recommend1(RecommendRequest) returns (RecommendResponse);
-    rpc recommend2(RecommendRequest) returns (RecommendResponse);
-}