Revert "Fix for Concurrency issue reported in  525529"

This reverts commit 7eb1fcb76989f11aaa9ca0a78e0361239ff5317d.

Change-Id: I37815b93bf2b25caff171888dc13788479a9c8c4
CRs-Fixed: 585504
Use highp precision for scaled coordination

If scaled coordination is closer to zero than what
the medium precision can store, distance becomes
zero and it causes divided by zero.

Change-Id: I8ee921dd1f57564a442e685266b12d95fc08e165
NetworkPolicy: Validate policy templates before updating

Ensure all the policies to be added are validated, otherwise
this service will throw IllegalArgumentException and cause
system crash when updating network template after receiving
ACTION_NETWORK_STATS_UPDATED.

Change-Id: I3faef0ac2a2fcea64ba5dde9c9256f6714280e2e
CRs-Fixed: 561490
WifiState: Don't aquire transitionwakelock in airplane mode

NetworkTransitionWakelock is for transition from Wifi to mobile.
It will cause device no sleep for 60s. There is no need to acquire
it in airplane mode.

Change-Id: I1487dc4787948d09e482f22e88d01768b54964da