LINK_CONFIGURATION_CHANGED broadcast: stop including EXTRA_LINK_PROPERTIES

This extra is unused, and potentially exposes sensitive information
that can be accessed without any permissions.

Bug: 162246414
Test: atest FrameworksWifiTests
Change-Id: Iae0339790ac9a664c6e73bc4254f1176c6d54f3b
Merged-In: Iae0339790ac9a664c6e73bc4254f1176c6d54f3b