wrappedkey: don't use twrp for processing anymore

Now in android-11 we can now process legacy and newer wrappedkey
support in our libfscrypt library. TWRP doesn't need to set a
property to check for wrapped key. libfscrypt will just process
wrappedkey fs_mgr flag for legacy wrapped key or wrappedkey_v0
for the newer wrapped key supported in android-11.

Change-Id: Ia94c7ebe34a05c9b25bbb7a5b2e899902c93d203
2 files changed