Remove seminar email link.

seminar.md

@@ -5,7 +5,6 @@ permalink: /seminar/
 ---
 Princeton SNS hosts a weekly lunch seminar, which we use to present recent work and discuss interesting papers.
 Refer to the calendar below or sign up for our <a href="https://lists.cs.princeton.edu/mailman/listinfo/systems-lunch">mailing list</a> to see our upcoming meetings. We also occasionally host talks from researchers from outside the group,
-from both industry and academia. If you're interested in giving a talk, please
-<a href="mailto:jhelt+sns-seminar@cs.princeton.edu">send us an email</a>. 
+from both industry and academia. 
 
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