Update CRAN comments

Author: hadley

cran-comments.md

@@ -1,35 +1,3 @@
 ## revdepcheck results
 
-We checked 7602 reverse dependencies, comparing R CMD check results across CRAN and dev versions of this package.
-
- * We saw 6 new problems - I reviewed these and I'm reasonable certain that
-   they're stochastic failures unrelated to testthat.
-   
- * We failed to check 13 packages
-
-Issues with CRAN packages are summarised below.
-
-### New problems
-
-* appler
-* batata
-* bayes4psy
-* covidcast
-* paws.common
-* xpose
-
-### Failed to check
-
-* Boom         (NA)
-* CausalImpact (NA)
-* ctsem        (NA)
-* fdaPDE       (NA)
-* gllvm        (NA)
-* loon.ggplot  (NA)
-* loon.shiny   (NA)
-* loon.tourr   (NA)
-* Platypus     (NA)
-* rstanarm     (NA)
-* tidyfit      (NA)
-* vivid        (NA)
-* xtensor      (NA)
+I did not re-run revdep checks as the changes should not affect existing packages.