Revert "Added locks and unlocks to connects and disconnects in Network and"

This reverts commit f11b76feea7f5cdbed040767719996756806a9f6.

This is causing deadlocks so we need to investigate what's happening in
another branch. I'm reverting it here now as a hotfix.

Conflicts:
	openxc/src/com/openxc/interfaces/bluetooth/BluetoothVehicleInterface.java
	openxc/src/com/openxc/interfaces/network/NetworkVehicleInterface.java