22337 Revert “Added the ability to set the initial route via launch urls. (… (cla: yes, platform-ios, waiting for tree to go green)

22339 Roll Skia from f8f23b203079 to 8d0f710ef0e0 (2 revisions) (cla: yes, waiting for tree to go green)

22341 Roll Dart SDK from 9bc7d4604277 to 1936a7d1909d (2 revisions) (cla: yes, waiting for tree to go green)

22343 Roll Skia from 8d0f710ef0e0 to 92bc649cd7e6 (1 revision) (cla: yes, waiting for tree to go green)