socket-manager: removes tizen specific call
socket-manager: removes tizen specific call

The function 'smack_fgetlabel' is specific to Tizen
and is no more maintained upstream.

Change-Id: I3802742b1758efe37b33e6d968ff727d68f2fd1f
Signed-off-by: José Bollo <42201aa815ba051091db495743930f96460d3180@nonadev.net>

Samsung/security-manager,Samsung/security-manager,Samsung/security-manager