Don't inject the context into KeyguardUnlockAnimationController

The context is unnecessarily and causes the
KeyguardUnlockAnimationController to have reference to a large object
it doens't need to. Instead, directly inject what's needed from the
context (resources and windowManager).

Bug: 325766190
Flag: None
Test: atest KeyguardUnlockAnimationControllerTest
Change-Id: I393170001bce4542e5dde2798d062deecbe735ee