We had a change in requirements that necessitated the removal of data vault from a 12c database. Initially, the documentation indicated that this was not possible. However, a colleague provided the solution. The steps are:
As SYS run:
EXEC DBMS_MACADM.DISABLE_DV;
Output should be:
PL/SQL procedure successfully completed.
Now bounce the database. After the bounce, as SYS run
alter session set recyclebin=off;
Followed by:
@?/rdbms/admin/dvremov.sql