[OU-FIX] web_disable_export_group: Proper migration scripts

The previous adaptation was not correct due to:

- The old XML-ID is already missing on post stage.
- There's now only one group, so no need of all the imply + group
  assignation stuff like in previous version.

web_disable_export_group/__manifest__.py

@@ -6,7 +6,7 @@
     "name": "Web Disable Export Group",
     "version": "14.0.2.0.0",
     "license": "AGPL-3",
-    "author": "Onestein, " "Tecnativa, " "Odoo Community Association (OCA)",
+    "author": "Onestein, Tecnativa, Odoo Community Association (OCA)",
     "website": "https://github.com/OCA/web",
     "category": "Web",
     "depends": ["web"],

web_disable_export_group/migrations/14.0.1.1.0/post-migration.py

@@ -1,16 +0,0 @@
-from openupgradelib import openupgrade
-
-
-def add_new_group_from_group(self, env, group, new_group):
-    groups = env["res.groups"].search([("implied_ids", "=", group.id)])
-    groups.write({"implied_ids": [(4, new_group.id)]})
-    group.users.write({"groups_id": [(4, new_group.id)]})
-
-
-@openupgrade.migrate()
-def migrate(env, version):
-    group = env.ref("web_disable_export_group.group_export_data")
-    new_group = env.ref("web_disable_export_group.group_export_xlsx_data")
-    add_new_group_from_group(env, group, new_group)
-    group = env.ref("base.group_allow_export")
-    add_new_group_from_group(env, group, new_group)

web_disable_export_group/migrations/14.0.1.1.0/pre-migration.py

@@ -0,0 +1,14 @@
+from openupgradelib import openupgrade
+
+
+@openupgrade.migrate()
+def migrate(env, version):
+    openupgrade.rename_xmlids(
+        env.cr,
+        [
+            (
+                "web_disable_export_group.group_export_data",
+                "web_disable_export_group.group_export_xlsx_data",
+            )
+        ],
+    )