[llvm] [AsmPrinter][Dwarf5][nfc] Remove template from AccelTable class (PR #76296)

[David Blaikie via llvm-commits]

https://github.com/dwblaikie approved this pull request.

SGTM - if you're feeling so inclined, I wouldn't mind a quick summary of why this did exist and what made it no longer needed - but it's not super important if it's no longer needed in any case.

https://github.com/llvm/llvm-project/pull/76296