clean up unused imports left over from groups/roles UI removal

After slices 1-5, dojo/forms.py no longer uses Dojo_Group_Member or
the dojo.group.queries helpers (get_authorized_groups,
get_group_member_roles); dojo/product/views.py and
dojo/product_type/views.py no longer reference Product_Group /
Product_Type_Group. ruff --select F401 --fix.

The empty {% block groups_submenu_link %}{% endblock %} placeholders
in base.html / templates_classic/base.html stay — they are Pro
extension points (filled by pro/templates/base.html), not dead OS
links.

Author: devGregA

dojo/forms.py

@@ -29,7 +29,6 @@
 
 from dojo.authorization.authorization import user_has_configuration_permission, user_is_superuser_or_global_owner
 from dojo.authorization.models import (
-    Dojo_Group_Member,
     Global_Role,
     Product_Group,
     Product_Member,
@@ -47,7 +46,6 @@
     GITHUBFindingForm,
     GITHUBForm,
 )
-from dojo.group.queries import get_authorized_groups, get_group_member_roles
 from dojo.jira import services as jira_services
 from dojo.jira.forms import (  # noqa: F401 backward compat
     JIRA_TEMPLATE_CHOICES,
@@ -81,7 +79,6 @@
     Cred_Mapping,
     Cred_User,
     Development_Environment,
-    Dojo_Group,
     Dojo_User,
     DojoMeta,
     Endpoint,

dojo/product/views.py

@@ -28,7 +28,6 @@
 import dojo.finding.helper as finding_helper
 from dojo.authorization.authorization import user_has_permission, user_has_permission_or_403
 from dojo.authorization.models import (
-    Product_Group,
     Product_Member,
 )
 from dojo.authorization.roles_permissions import Permissions

dojo/product_type/views.py

@@ -14,7 +14,7 @@
 from django.utils.translation import gettext as _
 
 from dojo.authorization.authorization import user_has_permission, user_has_permission_or_403
-from dojo.authorization.models import Product_Type_Group, Product_Type_Member, Role
+from dojo.authorization.models import Product_Type_Member, Role
 from dojo.authorization.roles_permissions import Permissions
 from dojo.filters import ProductFilter, ProductFilterWithoutObjectLookups, ProductTypeFilter
 from dojo.forms import (