Revert "Allow USB notification to show when primary SD allows UMS and MTP"

This reverts commit 0604d07b8e6c036c8b6888b464e047f2ebc4ed34.
Revert "Add UsbDebuggingManager and UsbDebuggingActivity to LegacyUsbManager"

This reverts commit 69302e48b922a67b8e57ac28aa5a69abf1c128df.
Revert "Add option for switching between UMS and MTP/PTP mode. (1/2)"

This reverts commit ce05641056e68a8681aef80fb39d817a0063638b.