Streamline Dagger Initization.

This simplifies the dagger initilization, removing constructs that
provided no value to the process, but did serve to make the code
more complex to analyze.

Update dagger.md while we're here.

Fixes: 161911916
Test: manual
Change-Id: I84ced47d7cd6ce90664b68339acb7d7db765d56f