ci: don't put compilers in config (#40700)

* ci: don't register detectable compilers

Cause they go out of sync...

* remove intel compiler, it can be detected too

* Do not run spack compiler find since compilers are registered in concretize job already

* trilinos: work around +stokhos +cuda +superlu-dist bug due to EMPTY macro

share/spack/gitlab/cloud_pipelines/.gitlab-ci.yml

@@ -140,6 +140,7 @@ default:
     - spack --version
     - cd share/spack/gitlab/cloud_pipelines/stacks/${SPACK_CI_STACK_NAME}
     - spack env activate --without-view .
+    - spack compiler find
     - export SPACK_CI_CONFIG_ROOT="${SPACK_ROOT}/share/spack/gitlab/cloud_pipelines/configs"
     - spack python -c "import os,sys; print(os.path.expandvars(sys.stdin.read()))"
       < "${SPACK_CI_CONFIG_ROOT}/${PIPELINE_MIRROR_TEMPLATE}" > "${SPACK_CI_CONFIG_ROOT}/mirrors.yaml"