fix code ntote

Author: Yunuuuu

R/coord-radial.R

@@ -41,9 +41,8 @@
 #' ggplot(mtcars, aes(disp, mpg)) +
 #'   geom_point() +
 #'   coord_radial(start = -0.4 * pi, end = 0.4 * pi, inner.radius = 0.3)
-#' 
-#' # Similar with coord_cartesian(), you can set limits, but note the `clip` 
-#' # area is not the same with the circle track area.
+#'
+#' # Similar with coord_cartesian(), you can set limits.
 #' ggplot(mtcars, aes(disp, mpg)) +
 #'     geom_point() +
 #'     coord_radial(