Apply suggestions from code review

Co-authored-by: Hannah Frick <hfrick@users.noreply.github.com>

Author: topepo

tests/testthat/test-decision_tree.R

@@ -25,16 +25,6 @@ test_that('bad input', {
   )
 })
 
-test_that('rpart_train is stop-deprecated when it ought to be (#1044)', {
-  skip_on_cran()
-
-  # once this test fails, transition `rpart_train()` to `deprecate_stop()`
-  # and transition this test to fail if `rpart_train()` still exists after a year.
-  if (Sys.Date() > "2025-02-01") {
-    expect_snapshot(error = TRUE, rpart_train(mpg ~ ., mtcars))
-  }
-})
-
 # ------------------------------------------------------------------------------
 
 test_that('argument checks for data dimensions', {