Remove deprecated annotations from javadocs

This adds on to some of the previous commits removing Bukkit's deprecation. Some of the methods that were undeprecated stayed deprecated because of the deprecated annotations in the javadocs.

I do realize that I could have modified https://github.com/SpigotMC/Spigot/blob/master/Bukkit-Patches/0025-Remove-deprecation-on-some-player-lookup-methods.patch, but I don't know how (googling didn't work, if someone is willing to help me that would be amazing).

Thanks,
dmulloy2