[Feature Request]: remove {tidyselect} from {teal.transform}

[m7pr]

Consider if we can substitute {tidyselect} package usage with a function from base.
{tidyselect} is only used once get_reshape_call() in R/get_dplyr_call.R.

I don't think this function is even used in teal.transform or outside of teal.transform

Part of #194