bionic libc tests: clean up test for static_init

This change is to delete the static init test related files and settings.
Since they do not contain useful test, they only test the member behivor
in CPP constructor which are tested in bionic/tests/dlcfn_test.cpp file

Change-Id: I06a882e16f9f917e79d82c2b78978a6f1e7c2bb6
Signed-off-by: Yongqin Liu <yongqin.liu@linaro.org>
4 files changed