Removes sqlite support 😢

RIP, things have gotten too complicated for this I think

bookwyrm/models/import_job.py

@@ -2,12 +2,12 @@
 import re
 import dateutil.parser
 
+from django.contrib.postgres.fields import JSONField
 from django.db import models
 from django.utils import timezone
 
 from bookwyrm import books_manager
 from bookwyrm.models import ReadThrough, User, Book
-from bookwyrm.utils.fields import JSONField
 from .base_model import PrivacyLevels
 
 

bookwyrm/settings.py

@@ -99,10 +99,6 @@ BOOKWYRM_DBS = {
         'HOST': env('POSTGRES_HOST', ''),
         'PORT': 5432
     },
-    'sqlite': {
-        'ENGINE': 'django.db.backends.sqlite3',
-        'NAME': os.path.join(BASE_DIR, 'fedireads.db')
-    }
 }
 
 DATABASES = {

bookwyrm/utils/fields.py

@@ -1,67 +0,0 @@
-'''Quick and dirty shim for JSONField and ArrayField compatibility on sqlite.
-
-For more info and original code, see:
-- https://medium.com/@philamersune/using-postgresql-jsonfield-in-sqlite-95ad4ad2e5f1
-- https://gist.github.com/pvsune/2e5f9f9ae356d0bff633d896bc7d168b#file-django-sqlite-fields-py
-'''
-
-import json
-
-from django.conf import settings
-from django.contrib.postgres.fields import (
-    JSONField as DjangoJSONField,
-    ArrayField as DjangoArrayField,
-)
-from django.db.models import Field
-
-
-class JSONField(DjangoJSONField):
-    pass
-
-
-class ArrayField(DjangoArrayField):
-    pass
-
-
-if 'sqlite' in settings.DATABASES['default']['ENGINE']:
-    class JSONField(Field):
-        def db_type(self, connection):
-            return 'text'
-
-        def from_db_value(self, value, expression, connection):
-            if value is not None:
-                return self.to_python(value)
-            return value
-
-        def to_python(self, value):
-            if value is not None:
-                try:
-                    return json.loads(value)
-                except (TypeError, ValueError):
-                    return value
-            return value
-
-        def get_prep_value(self, value):
-            if value is not None:
-                return str(json.dumps(value))
-            return value
-
-        def value_to_string(self, obj):
-            return self.value_from_object(obj)
-
-
-    class ArrayField(JSONField):
-        def __init__(self, base_field, size=None, **kwargs):
-            """Care for DjangoArrayField's kwargs."""
-            self.base_field = base_field
-            self.size = size
-            super().__init__(**kwargs)
-
-        def deconstruct(self):
-            """Need to create migrations properly."""
-            name, path, args, kwargs = super().deconstruct()
-            kwargs.update({
-                'base_field': self.base_field.clone(),
-                'size': self.size,
-            })
-            return name, path, args, kwargs