Rip out half-implemented m.login.saml2 support (#4265)

* Rip out half-implemented m.login.saml2 support

This was implemented in an odd way that left most of the work to the client, in
a way that I really didn't understand. It's going to be a pain to maintain, so
let's start by ripping it out.

* drop undocumented dependency on dateutil

It turns out we were relying on dateutil being pulled in transitively by
pysaml2. There's no need for that bloat.

1 files changed, 0 insertions, 1 deletions

diff --git a/synapse/python_dependencies.py b/synapse/python_dependencies.py

index ca62ee7637..75ba9947cc 100644
--- a/synapse/python_dependencies.py
+++ b/synapse/python_dependencies.py
@@ -53,7 +53,6 @@ REQUIREMENTS = {
     "pillow>=3.1.2": ["PIL"],
     "sortedcontainers>=1.4.4": ["sortedcontainers"],
     "psutil>=2.0.0": ["psutil>=2.0.0"],
-    "pysaml2>=3.0.0": ["saml2"],
     "pymacaroons-pynacl>=0.9.3": ["pymacaroons"],
     "msgpack-python>=0.4.2": ["msgpack"],
     "phonenumbers>=8.2.0": ["phonenumbers"],