Revert "Keystore 2.0: Add CREATE_DATETIME unconditionally."

This reverts commit 5aca5d6947a8cf1b1018e087a6e143bc4cfd635f.

Reason for revert: Bug: 204841659

Change-Id: I391f540e117d85146d52f984dee4127b70e544c2
1 file changed