Revert commented login

src/submission/submit.py

@@ -70,13 +70,12 @@ def add_new_eval(
     requested_models: set[str] = None,
     users_to_submission_dates: dict[str, list[str]] = None,
 ):
-    # # Login required
-    # if profile is None:
-    #     return styled_error("Hub Login Required")
+    # Login required
+    if profile is None:
+        return styled_error("Hub Login Required")
 
-    # # Name of the actual user who sent the request
-    # username = profile.username
-    username = "test"
+    # Name of the actual user who sent the request
+    username = profile.username
 
     # Initialize the requested_models and users_to_submission_dates variables
     # If the caller did not provide these values, fetch them from the EVAL_REQUESTS_PATH