Remove no longer needed workaround for new devices that previously

advertised a wrong Build.FIRST_SDK_INT. All devices shipped with P or
later now use the new /data/vendor_de storage location for fingerprint
data.

Bug: 72405644
Test: fingerprints work on device and are installed in data/vendor_de
Change-Id: I1031ca6f09ea712568716c0ba77c74730e239a7a