[SB][Scene] Ignore animateIn/Out methods on status bar if flag enabled.

The new scenes framework should automatically handle in/out animations,
and we can define custom animations once the transitions framework is
ready. For now, just ignore the old animate in/out methods.

Bug: 300484307
Test: enable scenes, verify status bar still appears on lockscreen and
disappears on AOD, shade, bouncer, etc.

Change-Id: I2363b6e2356083327c309989f5445c5c1361b873