Make super_encrypt_on_key_init inline

Keystore2 super key handling is being refactored in preparation for
Unlocked-Only Storage.

There's no reason to separate this function.  It doesn't handle any
complicated logic and makes control flow more difficult to understand.

Bug: 280502317
Bug: 277798192
Test: Wiped device. Setup user with PIN. Ensured unlock works. Remove
    PIN. Ensured unlock works. Added pin and biometric. Ensured unlock
    works.  Rebooted device. Ensured unlock works.
Change-Id: Iafd31ae79a722910effaba98ac216d5b912dd348
1 file changed