RelayProfiler: remove support for "*" profile event
RelayProfiler: remove support for "*" profile event

Summary: We only have a single event used for `RelayProfiler.profile()`, this diff removes the support for the catch all `*` event name and enforces the event name with Flow.

Reviewed By: jstejada

Differential Revision: D27571844

fbshipit-source-id: 7c6d569d87a0f456696a9ebedef47a5bced1b042

kassens/relay,voideanvalue/relay,facebook/relay,yungsters/relay,wincent/relay,yungsters/relay,kassens/relay,facebook/relay,facebook/relay,facebook/relay,atxwebs/relay,voideanvalue/relay,kassens/relay,atxwebs/relay,xuorig/relay,xuorig/relay,wincent/relay,josephsavona/relay,kassens/relay,voideanvalue/relay,wincent/relay,atxwebs/relay,xuorig/relay,voideanvalue/relay,kassens/relay,josephsavona/relay,kassens/relay,josephsavona/relay,voideanvalue/relay,xuorig/relay,facebook/relay,voideanvalue/relay,xuorig/relay,xuorig/relay,facebook/relay,wincent/relay,atxwebs/relay,wincent/relay,yungsters/relay,wincent/relay