drop impure checks from ci

checks/flake-module.nix

@@ -36,7 +36,6 @@ in
     ++ filter pathExists [
       ./devshell/flake-module.nix
       ./flash/flake-module.nix
-      ./impure/flake-module.nix
       ./installation/flake-module.nix
       ./update/flake-module.nix
       ./morph/flake-module.nix

checks/impure/flake-module.nix

@@ -1,51 +0,0 @@
-{
-  perSystem =
-    {
-      pkgs,
-      lib,
-      self',
-      ...
-    }:
-    {
-      # a script that executes all other checks
-      packages.impure-checks = pkgs.writeShellScriptBin "impure-checks" ''
-        #!${pkgs.bash}/bin/bash
-        set -euo pipefail
-
-        unset CLAN_DIR
-
-        export PATH="${
-          lib.makeBinPath (
-            [
-              pkgs.gitMinimal
-              pkgs.nix
-              pkgs.coreutils
-              pkgs.rsync # needed to have rsync installed on the dummy ssh server
-            ]
-            ++ self'.packages.clan-cli-full.runtimeDependencies
-          )
-        }"
-        ROOT=$(git rev-parse --show-toplevel)
-        cd "$ROOT/pkgs/clan-cli"
-
-        # Set up custom git configuration for tests
-        export GIT_CONFIG_GLOBAL=$(mktemp)
-        git config --file "$GIT_CONFIG_GLOBAL" user.name "Test User"
-        git config --file "$GIT_CONFIG_GLOBAL" user.email "test@example.com"
-        export GIT_CONFIG_SYSTEM=/dev/null
-
-        # this disables dynamic dependency loading in clan-cli
-        export CLAN_NO_DYNAMIC_DEPS=1
-
-        jobs=$(nproc)
-        # Spawning worker in pytest is relatively slow, so we limit the number of jobs to 13
-        # (current number of impure tests)
-        jobs="$((jobs > 6 ? 6 : jobs))"
-
-        nix develop "$ROOT#clan-cli" -c bash -c "TMPDIR=/tmp python -m pytest -n $jobs -m impure ./clan_cli $@"
-
-        # Clean up temporary git config
-        rm -f "$GIT_CONFIG_GLOBAL"
-      '';
-    };
-}