[SEBA-930] update GRPC version to 1.27 and change kafka message producing

Change-Id: I14145a1351eb2523fa54e66381ad97abc5eedf50
diff --git a/go.mod b/go.mod
index 9603bf3..ec4b244 100644
--- a/go.mod
+++ b/go.mod
@@ -5,12 +5,9 @@
 require (
 	github.com/Shopify/sarama v1.25.0
 	github.com/golang/protobuf v1.3.2
-	github.com/grpc-ecosystem/grpc-gateway v1.12.1 // indirect
+	github.com/grpc-ecosystem/grpc-gateway v1.12.2
 	github.com/klauspost/cpuid v1.2.1 // indirect
 	github.com/sirupsen/logrus v1.4.2
-	golang.org/x/lint v0.0.0-20190313153728-d0100b6bd8b3 // indirect
 	golang.org/x/net v0.0.0-20191119073136-fc4aabc6c914
-	golang.org/x/tools v0.0.0-20190524140312-2c0ae7006135 // indirect
-	google.golang.org/grpc v1.26.0
-	honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc // indirect
+	google.golang.org/grpc v1.27.0
 )