This reverts commit ba46e4f36646609060f0e1d514c80a3b4323d3cd.
There are currently no upcoming events to promote. This can be
un-reverted once we have something new we want listed, or perhaps
someone can figure out a better way to toggle the event banner
without needing deeper CSS changes to handle relative positioning of
the tagline text.
Change-Id: I3d1dc7dcc5ba8a2869a9a8890bf79275f332d559
cc41614a04
