Setting ipopt spec in Gridkit Spack package should be sufficient if c…

…orrectly updated.

.github/workflows/spack_default_build.yaml

@@ -96,7 +96,7 @@ jobs:
       matrix:
         # Minimal Build(s) - GHCR mirror speeds these up a lot!
         spack_spec:
-          - gridkit@develop ^ipopt+mumps~coinhsl
+          - gridkit@develop
 
     name: Build gridkit with Spack
     steps:
@@ -139,10 +139,6 @@ jobs:
       - name: Spack develop gridkit
         run: spack -e . develop --path=$(pwd) gridkit@develop
 
-      # Remove before merging
-      - name: Spack clean ipopt spec
-        run: spack -e . clean ipopt
-
       - name: Concretize
         run: spack -e . concretize