Remove generated_modules() from Spack backend

Author: Vasileios Karakasis

reframe/core/buildsystems.py

@@ -892,24 +892,6 @@ def prepare_cmds(self):
 
         return cmds
 
-    def post_build(self, buildjob):
-        # Store the modules generated by Spack
-
-        with open(os.path.join(self._prefix_save, buildjob.stdout)) as fp:
-            out = fp.read()
-
-        matches = re.findall(r'\[\+\] \S+/spack/opt/spack/\S+/(\S+)',
-                             out)
-        self._modules = []
-        for mod in matches:
-            mod = os.path.basename(mod)
-            name, version, hashid = mod.rsplit('-', maxsplit=2)
-            self._modules.append(f'{name}@{version}/{hashid}')
-
-    @property
-    def generated_modules(self):
-        return self._modules
-
 
 class BuildSystemField(fields.TypedField):
     def __init__(self, fieldname, *other_types):