Remove obfuscation of Battle tag via BNGetInfo

[nicaodl2]

Hello

This removes the pointless obfuscation of the call to get the Battle.net Battle Tag (User ID) for guide decryption. Aside from being silly and providing no real defense against guide sharing, it's also a violation of the WoW addon development policy to obfuscate any addon code. See section 2 of the policy:

2) Add-on code must be completely visible.
The programming code of an add-on must in no way be hidden or obfuscated, and must be freely accessible to and viewable by the general public.

No changes to functionality or features, just less and more readable code.