No, you cannot turn off estimated tax payments through e-file.
Call IRS e-file Payment Services 24/7 at 1-888-353-4537 to inquire about or cancel your payment, but please wait 7 to 10 days after your return was accepted before calling. Cancellation requests must be received no later than 11:59 p.m. ET two business days prior to the scheduled payment date.
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Did you schedule them at the IRS to come directly out of your account? Did you enroll with the EFTPS system? https://www.irs.gov/payments/eftps-the-electronic-federal-tax-payment-system
The 1040ES estimates are optional to pay. The IRS won't be expecting them. You can just stop paying them or cross out the amount and write in a new amount.
Or are you asking about paying a tax due? The quarterly estimates are for next year's 2021 tax return.