Revert "Add a compatibility symbol for the MemoryBase constructor."

Cherry pick from AOSP to fix the build.
See https://android-review.googlesource.com/#/c/53690/

This reverts commit 7f974ff2f317ffbf9256579109f000ec876c3037

Change-Id: I1b123f446d0ff41e11ff81d4ef5f1472b59cac93
3 files changed