Failure to move .dex in eng builds is not fatal

When moving between program locations or application names, the .dex
file is moved by installd. However, in engineering builds, the
applications are run through dexopt on-demand. If the .dex file fails to
move, we can ignore it because it's most likely because the .dex file
does not exist yet.

Change-Id: Id5c4dbfa33f19c976acd9f184ccd637752326629