fix news bullet

Author: teunbrand

NEWS.md

@@ -2,8 +2,6 @@
 
 * `geom_boxplot()` gains additional arguments to style the colour, linetype and
   linewidths of the box, whiskers, median line and staples (@teunbrand, #5126)
-* `ggsave()` no longer sometimes creates new directories, which is now 
-  controlled by the new `create.dir` argument (#5489).
 * (internal) Using `after_scale()` in the `Geom*$default_aes()` field is now
   evaluated in the context of data (@teunbrand, #6135)
 * Fixed bug where binned scales wouldn't simultaneously accept transformations