Remove viridisLite (#3631)

Fix #3623

Author: yutannihilation

DESCRIPTION

@@ -32,7 +32,6 @@ Imports:
     scales (>= 0.5.0),
     stats,
     tibble,
-    viridisLite,
     withr (>= 2.0.0)
 Suggests:
     covr,

R/scale-viridis.r

@@ -5,7 +5,7 @@
 #' with common forms of colour blindness. See also
 #' <https://bids.github.io/colormap/>.
 #'
-#' @inheritParams viridisLite::viridis
+#' @inheritParams scales::viridis_pal
 #' @inheritParams scales::gradient_n_pal
 #' @inheritParams continuous_scale
 #' @param ... Other arguments passed on to [discrete_scale()],