Remove fiat-crypto-legacy from CI

Motivations:
- We should have only maintained developments in our CI
- `make ci-fiat-crypto-legacy` takes about 15 mins before the first call
to `coqc`, making it unusable to work on overlays
- The coding style of this development is so fragile that adapting to
any change of behavior requires diffing gigabytes of Ltac traces.
@mattam82 and I have been blocked for 6 months this way, when working on
unifall.

I understand this development was meant to stress-test some components
like printing, but I think the trade-off is bad. We should rather come
up with specialized test suites for these components.

1 files changed, 0 insertions, 1 deletions

diff --git a/dev/ci/nix/default.nix b/dev/ci/nix/default.nix
index f08a08531f..c8ea59f08a 100644
--- a/dev/ci/nix/default.nix
+++ b/dev/ci/nix/default.nix
@@ -91,7 +91,6 @@ let projects = {
   cross_crypto = callPackage ./cross_crypto.nix {};
   Elpi = callPackage ./Elpi.nix {};
   fiat_crypto = callPackage ./fiat_crypto.nix {};
-  fiat_crypto_legacy = callPackage ./fiat_crypto_legacy.nix {};
   flocq = callPackage ./flocq.nix {};
   formal-topology = callPackage ./formal-topology.nix {};
   GeoCoq = callPackage ./GeoCoq.nix {};