1. add a deprecated roxygen tag w/ message ```r #' @deprecated Use [extract_soil_gssurgo()] with soilDB instead. ``` 2. add `.Deprecated("extract_soil_gssurgo")` to the top line of the function ```r gSSURGO.Query <- function(...) { .Deprecated("extract_soil_gssurgo") # keep the rest of the function as is ``` 3. remove any tests of the function 4. add notes to NEWS and CHANGELOG 6. document "how to deprecate a function" to the [coding style section](https://pecanproject.github.io/pecan-documentation/develop/coding-practices.html#developer-codestyle) of docs; link to PR as example 7. While editing docs, also include "Removing deprecated functions" for removing the function in a later release * Remove function from the codebase and NAMESPACE along with any remaining tests. * `git rm` the Rd file