In lighter vein, if you remove from your folder and system, it will cease to exist.
As opined by learned professionals above, please do write in detail, which policy you want to withdraw, why, consequences of the policy being there, any specific issues you are facing, what are the solutions, other than removing the policy etc. Like you are expected to be frank with your doctor and lawyer, here, please be open and frank with the background, so that we can give you appropriate options whereby you can make an amendment also to the current policy. Best wishes