connman: Fix bbappend

* introduced in
  https://github.com/openwebos/meta-webos/commit/b83d3bb85a19ad8f584badc2c54edcfafc2510c5

* SRC_URI and do_install_append are not needed, both are already
  in original .bb

* FILESEXTRAPATHS was missing, so connman file is still used
  from oe-core not this added version.

Open-webOS-DCO-1.0-Signed-off-by: Martin Jansa <martin.jansa@palm.com>
Change-Id: I04230270b40cbf41577c435596124d691ee1081e
Reviewed-on: http://g2g.palm.com/1432
Reviewed-by: Build Verification
Reviewed-by: Martin Jansa <martin.jansa@palm.com>
Tested-by: Martin Jansa <martin.jansa@palm.com>
Reviewed-by: Keith Derrick <keith.derrick@palm.com>