Remove usages of global transaction

The performSurfacePlacement will prepare the operation in the
pending transaction and then let WindowAnimator apply it with
vsync. Since there are only few usages of global transaction,
the transaction applied from performSurfacePlacement is almost
only from DisplayContent#prepareSurface, so it is more efficient
to centralize with WindowAnimator.

This can reduce an IPC to surfaceflinger in every surface
placement, which should eliminate one of major cost.

Bug: 159103089
Test: CtsWindowManagerDeviceActivity

Change-Id: I67e4e58aced78a2f36163178a64ca55d3c77e6f3