No. Your employer isn’t allowed to influence any of your decisions about your workplace pension. This is known as ‘inducement’ and there’s a law against it to protect you.
If you decide to stop paying into your workplace pension, this must be your decision.
For this reason, your employer can’t provide you with you opt-out forms, ask or encourage you to leave the scheme. If you feel you’re being pressured to leave the scheme, please contact The Pensions Regulator.