[CS] Remove CentralSurfacesComponent and CentralSurfacesScope!

The last piece of CentralSurfacesComponent was providing a way to
inflate CollapsedStatusBarFragment. This change makes the fragment
@Inject-able, so that it can just be instantiated via a Provider<>.

Fixes: 277762009
Test: manual: change font size -> verify CollapsedStatusBarFragment is
reinflated, and responds to subsequent changes (turning on/off DND,
turning on/off wifi, plugging in device)
Test: atest CentralSurfacesImplTest

Change-Id: Idb0b02e6113ef952fd3123681a643c8d726f8981