Revert "libutils: Properly #ifdef NEEDS_VECTORIMPL_SYMBOLS"

This reverts commit 1ff785445828a9a40138d67e1de2a4fbae9680e9.
Revert "Revert "Revert "put back the unused virtuals in Vector<>"""

This reverts commit 04e5e3b697caa1f47c89439415ddd870b3489a8f.
Add dummy functions for sony camera driver