This adds the md5sum for index.html into the check that is now done in the
debian apache2.postrm script.

 - No need to modify desktop file, previous change is present by default
 - Upstream + debian patches already remove mozilla reference
 - Modify patching for default feeds list

This reverts commit 9f09f055.

This reverts commit 5dcedc2f.

remove uneeded replace