style.py: do not remove import spack in packages (spack#47895)

Author: haampie

lib/spack/spack/cmd/style.py

@@ -323,8 +323,6 @@ def process_files(file_list, is_args):
             rewrite_and_print_output(output, args, pat, replacement)
 
     packages_isort_args = (
-        "--rm",
-        "spack",
         "--rm",
         "spack.pkgkit",
         "--rm",

var/spack/repos/builtin/packages/singularity-eos/package.py

@@ -5,6 +5,7 @@
 
 import os
 
+import spack
 import spack.version
 from spack.package import *