Interesting, but no, I’ve heard nothing about that.
SueRae is correct. Trump would get these delegates.
I think I found a partial answer...
http://frontloading.blogspot.com/2016/03/2016-republican-delegate-allocation-ohio.html
From the Ohio page..
Binding
The Ohio Republican Party rules are mostly silent on the matter of the release and/or binding of delegates. Article X, Section 1(d), the special rule added to make the allocation winner-take-all for just 2016, awards all 66 delegates to the winner of the statewide Ohio primary. That is the extent of the binding. Not included is information on how delegates would be released in the event that the winner of the primary withdraws from the race in addition to any description of how long those delegates would be bound at the national convention. Unlike other states, the number of ballots bound is not specified in the Ohio Republican Party rules.
While there are some gaps in these areas, Ohio is a state where state party rules overlap to some degree with Ohio state law on these matters. As such, the Ohio Republican Party is in consultation with Ohio Secretary of State Jon Husted’s office to reconcile the differences across the rules/laws and to determine the details on the remaining release and binding issues.
I can only imagine what discussions are taking place between party bosses and the Ohio secretary of state’s office. I can’t come up with any other reason why Kasich is still in.