remove non-model overload for Field descriptor#4

asottile-sentry merged 1 commit intosentry-4.2.6getsentry/sentry-forked-django-stubs:sentry-4.2.6from

sentry-4-2-6-field-descriptorgetsentry/sentry-forked-django-stubs:sentry-4-2-6-field-descriptorCopy head branch name to clipboard