You can use a standard delivered SAP program to delimit one or more infotypes on an OM object easily.
You can use
- RE_RHGRENZ4 - New end date
When using this program, you have several available cool options. You can have the objects and all related infotypes be delimited on a set date. With that, you can chose to either have it delete any future date records post the delimit date or leave it. You can also run it in test mode to see the result before you cause damages!
Try to play around with this in Sandbox and you can see the cool functionality of it.