Revert "sync audio_policy with msm8660"

This reverts commit e9b80cbc82763daa9ed6c393f8a2fad847356d28.
Adding setprop entries for tcp delayed ack for Wifi & LTE

TCP delayed ack settings are expected to be modified when the
Wifi or LTE connection is established and the configurations
will be reverted back when the Wifi connection is terminated.
The change also modifies the /sys/kernel/ipv4/tcp_delack_seg
and /sys/kernel/ipv4/tcp_use_useconfig file owner to "system"