Migrate OneHanded to WM shell (3/n)

Remove OneHnadedUI and use OneHandedController through WMShell.

Bug: 161980408
Test: m
Test: atest com.android.systemui.onehanded
Test: manual check OneHanded funcation
Change-Id: I5148a9a74799ecd911f23403ca2d5df487717fc9
24 files changed