Revert "fix MTP fc on USB plugin"

This reverts commit a42d5d311ee15b2828d50ea4c56b8af6b89ae1b1.

Change-Id: I889d9f0ed3b92aeedf0a11fed4a725afa6a2fb36
Revert "grouper: enable USB OTG storage"

This reverts commit 9478e7cb77d584318ca7838556649bb8d09aa527.

Change-Id: I5fd033aa34478258a19994b2c0928f7f0416fa1f