bootstrap: make sure sfconf will be removed
bootstrap: make sure sfconf will be removed

Change-Id: I39e955303ecf891fb013ae9e4600d011f71ebea4

invenfantasy/software-factory,enovance/software-factory,enovance/software-factory,enovance/software-factory,invenfantasy/software-factory,invenfantasy/software-factory,invenfantasy/software-factory,enovance/software-factory,enovance/software-factory,invenfantasy/software-factory