turbotax just pulled in my CRA information and I am seeing canada training credit limit amount under "total deductions and credits". What is it ? should I keep or delete?

The Canada training credit (CTC) is a refundable tax credit for tuition and other fees paid for courses that you took in during the tax year. You may be able to claim both the CTC and the tuition tax credit in the same year, but your eligible tuition and fees paid for the year will be reduced by any CTC you claim. So, you might want to keep your CTC for a later year, as it will carry forward until you are 65.