Revert "shinano: reconfigure bt for sony libbt"

This reverts commit 9a9df66b30166be11abee99a3dbfd5905b01de56.

Change-Id: If3cf1d29ca96ae3f3fab75aea6acc68221a58cd4
Revert "shinano: wifi: use aosp firmware"

This reverts commit 7adb977d087ab311315bae57534d365098b4d576.

Change-Id: I85800845fc4b4d28f8bad5f15abd9533f4a90f6e