The Limited Warranty for the Intel® Solid-State Drive 750 Series does NOT cover Any Product which has been modified or where the original identification markings (trademark or serial number) has been removed, altered or obliterated from the Product, or where the label or screw on the exterior of the Product is removed or broken.
Please confirm if you are referring to the identification label of the drive, or provide details (pictures) of the sticker you are referring to.
The label in the SSD is required for warranty purposes. The warranty would be voided if it is modified, altered or removed.
You can cover the label with paper or tape to improve the aesthetics, if you do so, please be sure that the cover can be removed in the event that you need an RMA. Also be sure the cover does not interfere with the functionality of the large metal heat-sink on the drive.
The label on the other side of the drive should not be an issue as it can't be seen when the drive is installed, but it should not be removed either. This label is required by the Customs and Certification agencies around the world.