Boost apparently uses a MSVC auto-link feature to cause MSVC to request
a static library with a very particular name; disable this and remove
the associated ugly workarounds boost/Package_boost*.mk.
(Another alternative better than Package_boost*.mk would be to
just mangle the static library name in RepositoryFixes.mk)

Change-Id: Iea91f9978da00d89d2a696f3cdd090a85cea8e64