Thank you for using our forum. My name is ***** ***** I hope to assist you today.
I am sorry to learn of this situation.
Unfortunately, based only on what you are posting here, I do not see a basis for your property to revert back to the earlier deeds (your lot is really not the original parcel it is a new parcel, and the new parcel is subject to a different deed restriction).
What commonly happens with situations such as this is that in order to get the lot line adjustment or lot split, the owner of the properties must agree to have the properties subject to the latest covenants (I assume this is part of an HOA or some other common interest development, or reciprocal easement), in exchange for getting the lot line through.
This means that the only way to get the lot lines adjusted was for the property to be subject to these newer covenants.
Unfortunately, to get a more specific answer, you are probably going to need to speak with a title company or a real estate attorney that can review your specific chain of title (there may be some exception that exists, but based only on what you posted here, and the "general information" that we can provide you with, I do not see any basis for reverting your property to the older covenants).