rewrite competition service: remove http related things

internal/competition/server/server.go

@@ -8,7 +8,6 @@ import (
 
 	"datarush/internal/competition/config"
 	grpcHandlers "datarush/internal/competition/handler/grpc"
-	"datarush/internal/competition/middleware"
 	"datarush/internal/competition/repository/postgres"
 	"datarush/internal/competition/service"
 	pb "datarush/pkg/api/competition"
@@ -64,10 +63,6 @@ func (s *Server) Start() error {
 }
 
 func (s *Server) registerGRPCServices() error {
-	s.grpcServer = grpc.NewServer(
-		grpc.UnaryInterceptor(middleware.AuthInterceptor(s.config.JWTSecret)),
-	)
-
 	compRepo := postgres.NewCompetitionRepository(s.db)
 	compService := service.NewCompetitionService(compRepo)
 	compHandler := grpcHandlers.NewCompetitionHandler(compService)
@@ -95,4 +90,4 @@ func (s *Server) Stop() {
 	}
 
 	log.Println("competition server stopped")
-}
+}