Update CRAN comments

Author: hadley

cran-comments.md

@@ -4,9 +4,4 @@
 
 ## revdepcheck results
 
-We checked 9992 reverse dependencies, comparing R CMD check results across CRAN and dev versions of this package.
-
- * We saw 91 new problems
- * We failed to check 26 packages
-
-The majority of this failing tests are due to the removal of `with_mock()`/`local_mock()` since they rely on functions no longer exported the R API. I started the process of notifying package maintainers about this in January, and while a substantial number fixed their packages, unforutnately many did. For the remainder of the issues, I prepared pull requests to fix the problems (mostly bugs revealed by stricter testing). You can see my progress at <https://github.com/r-lib/testthat/issues/2243>.
+This fixes an R CMD check problem and another minor issue. I did not check revdeps.