Leaving the files where they are does not compromise your system security.
Remember, the Standard Shield is for resident protection. If you perform a full Thorough scan regularly, then all files will be scanned for all virii.
The files mentioned are normally “inprocess” and constantly changing. Avast would more than likely register “false positives”. I would imagine that is one of the reasons that they are not included in the Standard Shield dependency.

techie101