[TF2] remove "limited time" icons from Something Special For Someone Special, Random robo community key gift, Random end of the line key gift + their "pile of" variants

[Whurrhurr]

SSfSS, the pile of robo and ETOL community crate key gifts have the "limited time" icons on them in the mann co. store implying that after a certain date, they will no longer be sold on the store, however, this has been proven to not be true at all, since they have never been taken off of the mann co. store for years after being introduced. just as an example, the something special for someone special has the "limited time only" icon on it. Pile of Robo community crate Key Gifts and a random Robo community crate Key Gift & Pile of End of The Line crate Key Gifts and a random End of The Line crate Key Gift also have this icon, but the regular key for the same crates do not have this icon.