Update godoc in entry_generic.go

Author: bmoffatt

lambda/entry_generic.go

@@ -16,8 +16,6 @@ type HandlerFunc[TIn, TOut any] interface {
 
 // StartHandlerFunc is the same as StartWithOptions except that it takes a generic input
 // so that the function signature can be validated at compile time.
-//
-// Currently only the `func (context.Context, TIn) (TOut, error)` variant is supported
 func StartHandlerFunc[TIn any, TOut any, H HandlerFunc[TIn, TOut]](handler H, options ...Option) {
 	start(newHandler(handler, options...))
 }