fixup generated file names and grpc template

Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>

templates/{{trimSuffix ".proto" .File.Name}}_micro_grpc.pb.go.tmpl

@@ -59,23 +59,8 @@ func (c *{{$ServiceName | lowerFirst}}Service) {{.Name}}(ctx context.Context, re
     return rsp, nil
   {{- end}}
 }
-{{if or (.ServerStreaming) (.ClientStreaming)}}
-type {{$ServiceName}}_{{.Name}}Service interface {
-    Context() context.Context
-    SendMsg(interface{}) error
-    RecvMsg(interface{}) error
-    {{- if and (.ClientStreaming) (not .ServerStreaming)}}
-    RecvAndClose() (*{{$rspMethod}}, error)
-    {{- end}}
-    Close() error
-    {{- if .ClientStreaming}}
-    Send(*{{$reqMethod}}) error
-    {{- end}}
-    {{- if .ServerStreaming}}
-    Recv() (*{{$rspMethod}}, error)
-    {{- end}}
-}
 
+{{if or (.ServerStreaming) (.ClientStreaming)}}
 type {{$ServiceName | lowerFirst}}Service{{.Name}} struct {
     stream micro_client.Stream
 }
@@ -156,22 +141,6 @@ func (h *{{$ServiceName | lowerFirst}}Handler) {{.Name}}(ctx context.Context, re
 }
 {{- end}}
 {{if or (.ServerStreaming) (.ClientStreaming)}}
-type {{$ServiceName}}_{{.Name}}Stream interface {
-  Context() context.Context
-  SendMsg(interface{}) error
-  RecvMsg(interface{}) error
-  {{- if and (.ClientStreaming) (not .ServerStreaming)}}
-  SendAndClose(*{{$rspMethod}}) error
-  {{- end}}
-  Close() error
-  {{- if .ServerStreaming}}
-  Send(*{{$rspMethod}}) error
-  {{- end}}
-  {{- if .ClientStreaming}}
-  Recv() (*{{$reqMethod}}, error)
-  {{- end}}
-}
-
 type {{$ServiceName | lowerFirst}}{{.Name}}Stream struct {
   stream micro_server.Stream
 }