GitLab

We remove flags for:
- EnableFloatingVirtualKeyboard
- EnableVirtualKeyboardMdUi

as both are features that already launched in M70.

Bug: 856195, 771466
Change-Id: Ifcba7c9654d491ab1b6cc210314823c4f49f8a4c
Reviewed-on: https://chromium-review.googlesource.com/c/1341437Reviewed-by: Scott Violet <sky@chromium.org>
Commit-Queue: Darren Shen <shend@chromium.org>
Cr-Commit-Position: refs/heads/master@{#609457}