init_parser_fuzzer: remove interface checks

CheckInterfaceInheritanceHierarchy() is for host_init_verifier to check
the interface names at buildtime. We don't need to fuzz the host-side
verification code.

Bug: 326827772
Test: run init_parser_fuzzer
Change-Id: Ie01dc2953fd6e69ef3c2cb9caadf7b9964a3d244