Disable the static libcutils tests.

The static libcutils tests cannot be built when using libc++ because
there are multiple symbol definition errors between libc++ and libgcc.

Bug: 18389856
Change-Id: I6f41c561f97b3a37477f844e9abf6551524a0fa3
Don't manually link libgtest_main in libion tests.

This is actually probably broken right now, since these tests are
getting both the libc++ flavor and stlport flavor of libgtest_main.

Bug: 15193147
Change-Id: Ic2f8dda98240c12591803f3c3522505314a05609
Merge "Disable the static libcutils tests."
Merge "Don't manually link libgtest_main in libion tests."