Yes, the charity deduction isn't going away. It is anticipated it will be used less often in 2018 because the standard deductions are increasing.
If you have other significant deductions, such as medical expenses and mortgage interest, it is worth it to get receipts.
For more information for changes that will impact the tax return you file in spring 2019, click these links:
IRS Resources on New Tax Laws
TurboTax
on New Tax Laws