Let the finalization script create ABI dumps for all architectures

The command that creates ABI dumps was written for testing purpose.
It creates the ABI dumps for aosp_arm64-user. The complete finalization
process should create ABI dumps for all supported architectures. This
commit removes the command parameters so that it will create all ABI
dumps by default.

Test: out/host/linux-x86/bin/create_reference_dumps
Bug: 276503801
Change-Id: Id6fbbac512a13d085ea74fec6e8b137485639467