remove unused method

goofy-server/src/main/java/de/itvsh/goofy/common/command/CommandMapper.java

@@ -12,7 +12,6 @@ import org.springframework.beans.factory.annotation.Autowired;
 
 import de.itvsh.goofy.common.TimeMapper;
 import de.itvsh.goofy.common.callcontext.CallContextMapper;
-import de.itvsh.goofy.common.user.UserId;
 import de.itvsh.goofy.common.user.UserIdMapper;
 import de.itvsh.goofy.vorgang.RedirectRequest;
 import de.itvsh.kop.pluto.common.grpc.GrpcObjectMapper;
@@ -65,8 +64,4 @@ public abstract class CommandMapper {
 	@Mapping(target = "allFields", ignore = true)
 	abstract GrpcRedirectRequest toGrpcRedirectRequest(RedirectRequest request);
 
-	private UserId mapUserId(String userId) {
-		return UserId.from(userId);
-	}
-
 }