Revert "Reland "Use new create/removeInputChannel().""

Revert "Reland "Let InputFlinger create the server InputChannel""

Revert submission 12655292-hide-server-input-channel

Reason for revert: b/169173706
Reverted Changes:
Iefbfd9313:Reland "Let InputFlinger create the server InputCh...
I14837d545:Reland "Use new create/removeInputChannel()."

Change-Id: I2e002829ad2f077e1f118d0b09d274002b71afa9
14 files changed