Configure ICU4C without relying on build-time flags

The presence of the build-time flags appears to cause ICU4C
to open the .dat file again as a fallback if it fails to
find a config value. This is even though the .dat file is
explicitly mapped using udata_setCommonData().

Bug: 19960867
Bug: 19961406
(cherry-picked from commit 79fdcc64ea2d9234f258dac57f04b1017a573311)

(cherry picked from commit d2a3075106f700f229750c228de989b789b7dacd)

Change-Id: I6aea7b2be483cc9c8a0ecbb3311bdf1d272ccfb6
1 file changed