nix: Disable checks and remove crane workaround (#26356)

The checkPhase was failing for me in darwin so I turned it off. I think
eventually we'll want to use a separate derivation for tests (which
crane has a helper for).

Crane also solved our issue with spaces in paths so I bumped the flake
to pick up that fix and removed our workaround: ipetkov/crane#808.

Release Notes:

- N/A

nix/build.nix

@@ -213,12 +213,9 @@ craneLib.buildPackage (
       echo nightly > crates/zed/RELEASE_CHANNEL
     '';
 
-    # TODO: try craneLib.cargoNextest separate output and doCheck=false
-    # do we even care about running our test suite in the nix sandbox?
-
-    # see crane bug: https://github.com/ipetkov/crane/issues/808
-    doNotRemoveReferencesToRustToolchain = true;
-    doNotRemoveReferencesToVendorDir = true;
+    # TODO: try craneLib.cargoNextest separate output
+    # for now we're not worried about running our test suite in the nix sandbox
+    doCheck = false;
 
     installPhase =
       if stdenv.hostPlatform.isDarwin then