Remove `customize.py`

[batonac]

Output from bench migrate:

Loading Cloud Storage customizations

Queued rebuilding of search index

Traceback (most recent call last):
  File "<frozen runpy>", line 198, in _run_module_as_main
  File "<frozen runpy>", line 88, in _run_code
  File "./apps/frappe/frappe/utils/bench_helper.py", line 114, in <module>
    main()
  File "./apps/frappe/frappe/utils/bench_helper.py", line 20, in main
    click.Group(commands=commands)(prog_name="bench")
  File "./env/lib/python3.12/site-packages/click/core.py", line 1442, in __call__
    return self.main(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "./env/lib/python3.12/site-packages/click/core.py", line 1363, in main
    rv = self.invoke(ctx)
         ^^^^^^^^^^^^^^^^
  File "./env/lib/python3.12/site-packages/click/core.py", line 1830, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "./env/lib/python3.12/site-packages/click/core.py", line 1830, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "./env/lib/python3.12/site-packages/click/core.py", line 1226, in invoke
    return ctx.invoke(self.callback, **ctx.params)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "./env/lib/python3.12/site-packages/click/core.py", line 794, in invoke
    return callback(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^
  File "./env/lib/python3.12/site-packages/click/decorators.py", line 34, in new_func
    return f(get_current_context(), *args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "./apps/frappe/frappe/commands/__init__.py", line 29, in _func
    ret = f(frappe._dict(ctx.obj), *args, **kwargs)
          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "./apps/frappe/frappe/commands/site.py", line 694, in migrate
    ).run(site=site)
      ^^^^^^^^^^^^^^
  File "./apps/frappe/frappe/migrate.py", line 194, in run
    self.post_schema_updates()
  File "./apps/frappe/frappe/migrate.py", line 54, in wrapper
    raise e
  File "./apps/frappe/frappe/migrate.py", line 46, in wrapper
    ret = method(*args, **kwargs)
          ^^^^^^^^^^^^^^^^^^^^^^^
  File "./apps/frappe/frappe/migrate.py", line 157, in post_schema_updates
    frappe.get_attr(fn)()
  File "./apps/cloud_storage/cloud_storage/customize.py", line 27, in load_customizations
    field.pop("modified")
KeyError: 'modified'

I don't know why this triggered this particular time, but neither do I understand why load_customizations is necessary as compared to the core customizations api. I do believe the fix is as simple as changing field.pop("modified") to field.pop("modified", None) in customize.py

[agritheory]

@batonac Yes, the core customizations API has been improved to the point that customize.py is no longer required. I did some cleanup recently and thought I removed it.

[blkt16]

is there's any solution for this problem yet ?