refactor(tvix): assemble cragoDeps outputHashes from Cargo.nix r/6514

We already have these hashes accessible in the Cargo.nix file created
by cargo2nix, so there's no need to also manually maintain them here.

It removes one potential footgun I ran into while updating wu-manber to
a different rev, without updating it here.

Change-Id: I93932ac8ba55f83746ee38571b7740af2d49bbdf
Reviewed-on: https://cl.tvl.fyi/c/depot/+/9090
Autosubmit: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
Reviewed-by: raitobezarius <tvl@lahfa.xyz>

0 files changed, 0 insertions, 0 deletions