DO NOT MERGE Remove use of Dependency in SliceProvider

SliceProviders seem to be created before onCreate is called on the
application which causes some issues with using Dependency in Car System
UI.

Bug: 142974942
Test: manual for car sys ui and atest KeyguardSliceProviderTest on sdk_gphone_x86 emulator
Change-Id: I18d14d51c6b0b3219923b640d9f2145ed9b02b94
1 file changed