FalloutNewVegas v1.2: remove 128KB buffer cap — 98% libdeflate hit rate

Reverse-engineered CompressedArchiveFile constructor via Ghidra.
The game caps BSA decompression output buffers to min(entry_size, 128KB).
NOP the cap comparison so buffers match actual entry size.

Result: libdeflate one-shot goes from 93% to 98%, streaming calls drop
from 855 to 189, total decompression 122ms (was 290ms). 6.5x vs stock.