Deleting SeaPort is cumbersome, but not difficult. If you noticed it was running, then you are most likely familiar with the tools that will required to shut it down for good or remove it.
First, in Service Manager, shutdown the SeaPort service by clicking the Stop button. You can also kill the process from within your task manager if you prefer.
Second, set the startup method of the SeaPort service to Disabled from Automatic.
For most users, this should be sufficient, but some people have reported SeaPort re-enabling itself somehow. If this is the case, or if you just want to be really sure, then go to \Program Files\Microsoft\Search Enhancement Pack\SeaPort\ and either delete or rename the seaport.exe file.
Deleting the file, of course, completely removes the component from your PC, while renaming it provides the option to rename it back should the situation arise where you actually need SeaPort.
Hopefully, Microsoft will re-think the method it used this time to add this additional service, and be more forthcoming in the future both with the options to not install in the first place, as well as the option to remove such services later if it turns out that a particular user finds no need for it.