We are currently solving the following issue within our repository. Here is the issue text:
--- BEGIN ISSUE ---
Remove possibel unused constant
At first sight looks like isn't used anymore after https://github.com/rtfd/readthedocs.org/pull/5383

https://github.com/rtfd/readthedocs.org/blob/78c34c904b347110b2cd545b4b5a80ed526590f7/readthedocs/core/models.py#L13-L13

We should still double check and make sure tests are passing after the removal.

--- END ISSUE ---

Below are some code segments, each from a relevant file. One or more of these files may contain bugs.
--- BEGIN FILES ---
Path: `readthedocs/core/models.py`
Content:
```
1 # -*- coding: utf-8 -*-
2 
3 """Models for the core app."""
4 import logging
5 
6 from annoying.fields import AutoOneToOneField
7 from django.db import models
8 from django.urls import reverse
9 from django.utils.translation import ugettext
10 from django.utils.translation import ugettext_lazy as _
11 
12 
13 STANDARD_EMAIL = 'anonymous@readthedocs.org'
14 
15 log = logging.getLogger(__name__)
16 
17 
18 class UserProfile(models.Model):
19 
20     """Additional information about a User."""
21 
22     user = AutoOneToOneField(
23         'auth.User',
24         verbose_name=_('User'),
25         related_name='profile',
26     )
27     whitelisted = models.BooleanField(_('Whitelisted'), default=False)
28     banned = models.BooleanField(_('Banned'), default=False)
29     homepage = models.CharField(_('Homepage'), max_length=100, blank=True)
30     allow_ads = models.BooleanField(
31         _('See paid advertising'),
32         help_text=_('If unchecked, you will still see community ads.'),
33         default=True,
34     )
35 
36     def __str__(self):
37         return (
38             ugettext("%(username)s's profile") %
39             {'username': self.user.username}
40         )
41 
42     def get_absolute_url(self):
43         return reverse(
44             'profiles_profile_detail',
45             kwargs={'username': self.user.username},
46         )
47
```
--- END FILES ---

Please first localize the bug based on the issue statement, and then generate a patch according to the `git diff` format fenced by three backticks.

Here is an example:

```diff
diff --git a/examples/server_async.py b/examples/server_async.py
--- a/examples/server_async.py
+++ b/examples/server_async.py
@@ -313,4 +313,4 @@
 
 
 if __name__ == "__main__":
-    asyncio.run(run_async_server("."), debug=True)
+    asyncio.run(run_async_server(), debug=True)
diff --git a/examples/server_sync.py b/examples/server_sync.py
--- a/examples/server_sync.py
+++ b/examples/server_sync.py
@@ -313,5 +313,5 @@
 
 
 if __name__ == "__main__":
-    server = run_sync_server(".")
+    server = run_sync_server()
     server.shutdown()

```

diff --git a/readthedocs/core/models.py b/readthedocs/core/models.py
--- a/readthedocs/core/models.py
+++ b/readthedocs/core/models.py
@@ -10,8 +10,6 @@
 from django.utils.translation import ugettext_lazy as _
 
 
-STANDARD_EMAIL = 'anonymous@readthedocs.org'
-
 log = logging.getLogger(__name__)

{"golden_diff": "diff --git a/readthedocs/core/models.py b/readthedocs/core/models.py\n--- a/readthedocs/core/models.py\n+++ b/readthedocs/core/models.py\n@@ -10,8 +10,6 @@\n from django.utils.translation import ugettext_lazy as _\n \n \n-STANDARD_EMAIL = 'anonymous@readthedocs.org'\n-\n log = logging.getLogger(__name__)\n", "issue": "Remove possibel unused constant\nAt first sight looks like isn't used anymore after https://github.com/rtfd/readthedocs.org/pull/5383\r\n\r\nhttps://github.com/rtfd/readthedocs.org/blob/78c34c904b347110b2cd545b4b5a80ed526590f7/readthedocs/core/models.py#L13-L13\r\n\r\nWe should still double check and make sure tests are passing after the removal.\n", "before_files": [{"content": "# -*- coding: utf-8 -*-\n\n\"\"\"Models for the core app.\"\"\"\nimport logging\n\nfrom annoying.fields import AutoOneToOneField\nfrom django.db import models\nfrom django.urls import reverse\nfrom django.utils.translation import ugettext\nfrom django.utils.translation import ugettext_lazy as _\n\n\nSTANDARD_EMAIL = 'anonymous@readthedocs.org'\n\nlog = logging.getLogger(__name__)\n\n\nclass UserProfile(models.Model):\n\n    \"\"\"Additional information about a User.\"\"\"\n\n    user = AutoOneToOneField(\n        'auth.User',\n        verbose_name=_('User'),\n        related_name='profile',\n    )\n    whitelisted = models.BooleanField(_('Whitelisted'), default=False)\n    banned = models.BooleanField(_('Banned'), default=False)\n    homepage = models.CharField(_('Homepage'), max_length=100, blank=True)\n    allow_ads = models.BooleanField(\n        _('See paid advertising'),\n        help_text=_('If unchecked, you will still see community ads.'),\n        default=True,\n    )\n\n    def __str__(self):\n        return (\n            ugettext(\"%(username)s's profile\") %\n            {'username': self.user.username}\n        )\n\n    def get_absolute_url(self):\n        return reverse(\n            'profiles_profile_detail',\n            kwargs={'username': self.user.username},\n        )\n", "path": "readthedocs/core/models.py"}], "after_files": [{"content": "# -*- coding: utf-8 -*-\n\n\"\"\"Models for the core app.\"\"\"\nimport logging\n\nfrom annoying.fields import AutoOneToOneField\nfrom django.db import models\nfrom django.urls import reverse\nfrom django.utils.translation import ugettext\nfrom django.utils.translation import ugettext_lazy as _\n\n\nlog = logging.getLogger(__name__)\n\n\nclass UserProfile(models.Model):\n\n    \"\"\"Additional information about a User.\"\"\"\n\n    user = AutoOneToOneField(\n        'auth.User',\n        verbose_name=_('User'),\n        related_name='profile',\n    )\n    whitelisted = models.BooleanField(_('Whitelisted'), default=False)\n    banned = models.BooleanField(_('Banned'), default=False)\n    homepage = models.CharField(_('Homepage'), max_length=100, blank=True)\n    allow_ads = models.BooleanField(\n        _('See paid advertising'),\n        help_text=_('If unchecked, you will still see community ads.'),\n        default=True,\n    )\n\n    def __str__(self):\n        return (\n            ugettext(\"%(username)s's profile\") %\n            {'username': self.user.username}\n        )\n\n    def get_absolute_url(self):\n        return reverse(\n            'profiles_profile_detail',\n            kwargs={'username': self.user.username},\n        )\n", "path": "readthedocs/core/models.py"}]}