Remove the unused UnitTestProtocol code

Signed-off-by: David Black <[email protected]>

Author: dbaxa

atlassian_jwt_auth/tests/utils.py

@@ -65,18 +65,6 @@ def get_new_private_key_in_pem_format(self) -> bytes:
         raise NotImplementedError("not implemented.")
 
 
-class UnitTestProtocol(Protocol):
-    def assertEqual(self, a, b): ...
-
-    def assertIsNotNone(self, a): ...
-
-    def assertTrue(self, a): ...
-
-    def assertIn(self, a, b): ...
-
-    def assertNotEqual(self, a, b): ...
-
-
 class KeyMixInProtocol(Protocol):
     @property
     def algorithm(self) -> str: ...