Revert "settings: Silence CryptographyDeprecationWarning spam from a dependency."
Revert "settings: Silence CryptographyDeprecationWarning spam from a dependency."

The warning was fixed in python-jose 3.3.0, which we pulled in with
commit 61e1e38a00f4ef9fe4c1a302b93ce059646c62a6 (#18705).

This reverts commit 1df725e6f17bcc2a78837789c5632d1f5dc0f5cf (#18567).

Signed-off-by: Anders Kaseorg <dfdb7392591db597bc41cf266a9c3bc12a2706e5@zulip.com>

zulip/zulip,zulip/zulip,eeshangarg/zulip,kou/zulip,rht/zulip,kou/zulip,rht/zulip,kou/zulip,rht/zulip,andersk/zulip,kou/zulip,andersk/zulip,zulip/zulip,eeshangarg/zulip,rht/zulip,rht/zulip,eeshangarg/zulip,eeshangarg/zulip,andersk/zulip,andersk/zulip,rht/zulip,kou/zulip,andersk/zulip,kou/zulip,kou/zulip,rht/zulip,zulip/zulip,zulip/zulip,andersk/zulip,eeshangarg/zulip,eeshangarg/zulip,eeshangarg/zulip,zulip/zulip,andersk/zulip,zulip/zulip