Stop removing hide_all_but_jni_onload config from libc++

This is no longer needed and causes gn analyze to fail on Android component
builds since the hide_all_but_jni_onload config is never added.

BUG=846855
R=thakis

Change-Id: I0a9961f6fbda74cd5d3c71a3420588d02bfd86f8
1 file changed