Revert "[sailfish-browser] JB#9962: Use booster for dbus launch"
Revert "[sailfish-browser] JB#9962: Use booster for dbus launch"

This reverts commit acab7f38b8cd02fb40fb91f6058000b16ee33eea.

Booster currently causes crashes, see JB#9982

alinelena/sailfish-browser,rojkov/sailfish-browser,sailfishos/sailfish-browser,alinelena/sailfish-browser,rojkov/sailfish-browser,sailfishos/sailfish-browser,alinelena/sailfish-browser,rojkov/sailfish-browser,alinelena/sailfish-browser,sailfishos/sailfish-browser,sailfishos/sailfish-browser,sailfishos/sailfish-browser