keystore2_unsafe_fuzzer: Bug Fix

Remove get_declared_instances API as it is not a part of the target module - libkeystore2

Bug: 287588482
Test: ./keystore2_unsafe_fuzzer clusterfuzz-testcase-minimized-keystore2_unsafe_fuzzer-5127790852636672

Change-Id: I7513955783f4877496f721f52b92970887bbad41
2 files changed