chore: removes past events

closes #1529

Author: jesselpalmer

public/events.jade

@@ -7,29 +7,6 @@ table.is-full-width
 
   tbody
 
-    <!-- I/O -->
-    tr
-      th
-        a(
-        target="_blank"
-        href="https://events.google.com/io2016/"
-        ) Google I/O
-      td Mountain View, CA, USA
-      td May 18-20, 2016
-
-
-    <!-- angular-attack -->
-    tr
-      th
-        a(
-        target="_blank"
-        href="http://www.angularattack.com/"
-        ) Angular Attack
-      td 48 hour online Angular hackathon
-      td May 14-15, 2016
-
-
-
     <!-- Devoxx -->
     tr
       th