WaE: C4722: destructor never returns, potential memory leak

Change-Id: I9691048ca7dc6e18cc904b29e8f6f59b11e002cf
If we disable C4189 we should also disable C4100

They are both bogusly emitted from SAL_WARN_IF in an optimizing
compilation.

Change-Id: Ia56687422a29c61a7a8ad0d48541300c7643120e