Cleanup (#102)

* cleanup

* cleanup go mod

* Remove doc generation

* add no integration test

* fix broken test

* rename workflow

sentiment/proto/sentiment.proto

@@ -1,19 +0,0 @@
-syntax = "proto3";
-
-package sentiment;
-
-option go_package = "./proto;sentiment";
-
-service Sentiment {
-	rpc Analyze(Request) returns (Response) {};
-}
-
-message Request {
-	string text = 1;
-	string lang = 2;
-}
-
-message Response {
-	double score = 1;
-}
-