src/main/java/org/eiichiro/bootleg/Pipeline.java
public Pipeline<T> remove(int index) {
		Object object = stages.remove(index);
		names.remove(object);
		return this;
	}
public Pipeline<T> remove(int index) {
		Object object = stages.remove(index);
		names.remove(object);
		return this;
	}
Removes {@code Function} or {@code Predicate} at the specified index.

@param index The index the specified {@code Function} or {@code Predicate} to be removed.
@return This {@code Pipeline} instance.