Remove templatetags, related to old swagger system

[AlanCoding]

SUMMARY

This looks like it's not necessary for drf-spectacular, so going to try via a PR

ISSUE TYPE

• Bug, Docs Fix or other nominal change

COMPONENT NAME

• API

[AlanCoding]

Failing on

______________________ test_url_base_defaults_to_request _______________________
[gw1] linux -- Python 3.11.13 /var/lib/awx/venv/awx/bin/python3.11
Traceback (most recent call last):
  File "/var/lib/awx/venv/awx/lib64/python3.11/site-packages/django/template/base.py", line 505, in parse
le_func = self.tags[command]
                   ~~~~~~~~~^^^^^^^^^
KeyError: 'ifmeth'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/var/lib/awx/venv/awx/lib64/python3.11/site-packages/_pytest/runner.py", line 353, in from_call
    result: TResult | None = func()

later

  File "/var/lib/awx/venv/awx/lib64/python3.11/site-packages/django/template/base.py", line 507, in parse
    self.invalid_block_tag(token, command, parse_until)
  File "/var/lib/awx/venv/awx/lib64/python3.11/site-packages/django/template/base.py", line 568, in invalid_block_tag
    raise self.error(
django.template.exceptions.TemplateSyntaxError: Invalid block tag on line 1: 'ifmeth'. Did you forget to register or load this tag?

[AlanCoding]

ifmeth is used, giving up on this