fix(framework): remove the mention about what happens with nil from EventsToRegister

Author: sanposhiho

pkg/scheduler/framework/interface.go

@@ -371,8 +371,6 @@ type EnqueueExtensions interface {
 	// Note: the returned list needs to be static (not depend on configuration parameters);
 	// otherwise it would lead to undefined behavior.
 	//
-	// The returned events could be nil to indicate that no events other than the pod's own update
-	// can make the pod re-schedulable. An example is SchedulingGates plugin.
 	// Appropriate implementation of this function will make Pod's re-scheduling accurate and performant.
 	EventsToRegister() []ClusterEventWithHint
 }