Core Unsubscribes from HMI waypoints when it should not

[iCollin]

Bug Report

Code in ApplicationManagerImpl::UnregisterApplication seems to assume that the app being unregistered is subscribed to waypoints, and checks if there is only one app in the subscribed_way_points_apps_list_ before calling MessageHelper::SendUnsubscribedWayPoints

sdl_core/src/components/application_manager/src/application_manager_impl.cc

Line 3219 in 0ce7625

if (1 == subscribed_for_way_points_app_count) {

Reproduction Steps

1. Connect two apps
2. App1 subscribes to way points
3. App2 disconnects

Expected Behavior

Core does not send UnsubscribeWayPoints to HMI

Observed Behavior

Core sends UnsubscribeWayPoints to HMI

OS & Version Information

• OS/Version: any
• SDL Core Version: 6.1.1 develop
• Testing Against: ATF

Test Case, Sample Code, and / or Example App

smartdevicelink/sdl_atf_test_scripts#2408

[iCollin]

Closed via #3373