As JOcean says, that should not be there. Remove the sticker. Do not scape with anything metal, as that will cause scratches that will interfere with heat transfer through thermal compound to the heat sink. Use a plastic tool or credit card.  Clean the area with ArctiClean 1, followed by ArctiClean 2.  ArctiClean 1 emulsifies old paste. ArctiClean 2 purifies the surface, removing any cleaner residue. For Canadian $10 I got a package containing a bottle of ArctiClean 1 and a bottle of ArctiClean 2, enough to do several computers.[URL] To remove old thermal compound, you could instead use high-purity (over 90%) isopropyl alcohol. But, ArctiClean's kit works so well and is inexpensive, so go with that.  
Hi I opened the laptop for a repaste for the first time because the system was running hot. After removing the heatsink and fans, I noticed a yellow sticker on the CPU die, but not the GPU die. The sticker has a QR code, a large "1" and text that reads "AMT/VPRO". The underside of the bottom panel has the same yellow sticker with a large "2" on it. Is it normal for the CPU to have that yellow sticker where I found actual thermal paste installed? Other info intel i7 7700HQ; Nvidia Quattro m1200
Yellow sticker on CPU die on precision 5520