Remove runtime depends on useradd and Remove /src/.gitignore
Remove runtime depends on useradd and Remove /src/.gitignore

- Don't need depend on useradd, use inherit useradd.bbclass to create user/group.
- Don't need src/.gitignore files, because the patch files for .gitignore is removed.
(Base on commit:bfcaebfe249cb14860ebc3c8bb77a23402ffd257 in source code of pulseaudio)

Signed-off-by: Nguyen Van Hieu <95b6c63292b73e14e1eaecc80ea875350fcf3ae9@toshiba-tsdv.com>

meta-debian/meta-debian,meta-debian/meta-debian,meta-debian/meta-debian,meta-debian/meta-debian,meta-debian/meta-debian,meta-debian/meta-debian