Revert "Wi-Fi: Manage Wi-Fi AP priorities"

This reverts commit e44824e8de611de72354fdf25b6084ad406c2895.
Wi-Fi: Manage Wi-Fi AP priorities

AOSP has a basic LRU priority for Wi-Fi networks (last connected has more priority).
This changes added the ability of graphically set the priority of any of the configured
Wi-Fi networks through Settings -> Wi-Fi -> Advanced Settings -> Wi-Fi priority.

Patchset 2: Move WiFiPriority from cyanogenmod folder to wifi folder
            Remove double quotes in SSID name

Change-Id: Ief590e799cdb7ef760b631d0b22d9719f867393f
Signed-off-by: Jorge Ruesga <jorge@ruesga.com>