Revert "Don't allow std::make_shared/unique for ndk::SharedRefBase objects"

This reverts commit 21e09430ebd3044c88f680478e81f0131b58b470.

Reason for revert: Broke git_master/adt3-userdebug

Change-Id: Ia81059b38a679ba43183e669670f1ef6dcb61dac
2 files changed