drm/nouveau: remove unused memory target test

[ Upstream commit 64c722b5 ]

The memory target check is a hold-over from a refactor.  It's harmless
but distracting, so just remove it.

Fixes: 2541626c ("drm/nouveau/acr: use common falcon HS FW code for ACR FWs")
Signed-off-by: Timur Tabi <ttabi@nvidia.com>
Link: https://lore.kernel.org/r/20250813001004.2986092-3-ttabi@nvidia.com


Signed-off-by: Danilo Krummrich <dakr@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>