Delete old VTS code

- Delete old test cases.
- Remove functions from vndk_data.py.
- Delete the copy of ABI dumps.
- Delete dump_abi.py.

Test: atest vts_vndk_abi_test vts_vndk_dependency_test \
      vts_vndk_files_test
Bug: 147454897
Change-Id: I65a5e83b4b81e6737eef0caefb93104f879585b4
1756 files changed