No, it didn't. They did release a few box sets of the Undaunted and Triumphant Theme Decks that came with a code for the decks featured and the promos included (near the end of 2011, well into the BW era), but Undaunted/Triumphant pack codes never existed, nor did other HGSS-era pack codes. Prior to a certain update, however, you could redeem pack codes for any set, not just the one whose codes you were using, and HGSS-era packs were available that way. (And since they're no longer obtainable, are extremely rare and valuable in PTCGO.)
Hmm, actually, going by Bulbapedia's description of the above-mentioned Prime Challenge Boxes, you did get packs from Undaunted/Triumphant with those codes. (Though like early tin codes and such, I believe this is all in one, you don't get, say, two individual Triumphant pack codes. The one Prime Challenge Box code just gives you the deck, promos and 2 packs.)
