reactor-core/src/main/java/reactor/core/scheduler/Schedulers.java
public static void resetOnScheduleHook(String key) {
		synchronized (onScheduleHooks) {
			onScheduleHooks.remove(key);
			if (onScheduleHooks.isEmpty()) {
				onScheduleHook = Function.identity();
			}
			else {
				Function<Runnable, Runnable> newHook = null;
				for (Function<Runnable, Runnable> function : onScheduleHooks.values()) {
					if (newHook == null) {
						newHook = function;
					}
					else {
						newHook = newHook.andThen(function);
					}
				}
				onScheduleHook = newHook;
			}
		}
	}
public static void resetOnScheduleHook(String key) {
		synchronized (onScheduleHooks) {
			onScheduleHooks.remove(key);
			if (onScheduleHooks.isEmpty()) {
				onScheduleHook = Function.identity();
			}
			else {
				Function<Runnable, Runnable> newHook = null;
				for (Function<Runnable, Runnable> function : onScheduleHooks.values()) {
					if (newHook == null) {
						newHook = function;
					}
					else {
						newHook = newHook.andThen(function);
					}
				}
				onScheduleHook = newHook;
			}
		}
	}
Reset a specific onScheduleHook {@link Function sub-hook} if it has been set up
via {@link #onScheduleHook(String, Function)}.

@param key the key for onScheduleHook sub-hook to remove
@see #onScheduleHook(String, Function)
@see #resetOnScheduleHooks()