[aosp]remove -B option docu as it doesn't exist in offical envsetup.sh script
[aosp]remove -B option docu as it doesn't exist in offical envsetup.sh script

sleticalboy/sleticalboy.github.io,sleticalboy/sleticalboy.github.io,sleticalboy/sleticalboy.github.io,sleticalboy/sleticalboy.github.io