Re-hide the contacts APIs, the droiddoc build is failing.
Re-hide the contacts APIs, the droiddoc build is failing.

Change-Id: I1d1e73924e26045ad137a19c32976ecfe68c7d49

xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base