SurfaceControl: Remove setOverrideScalingMode

Following recent frameworks/base changes there are no callers.

Bug: 161937501
Test: Existing tests pass
Change-Id: I1a39d30ebd70a0b0cb430a6d1ae48086c3e1806e
diff --git a/services/surfaceflinger/BufferQueueLayer.cpp b/services/surfaceflinger/BufferQueueLayer.cpp
index 0863a22..ec828d4 100644
--- a/services/surfaceflinger/BufferQueueLayer.cpp
+++ b/services/surfaceflinger/BufferQueueLayer.cpp
@@ -239,7 +239,7 @@
     bool queuedBuffer = false;
     const int32_t layerId = getSequence();
     LayerRejecter r(mDrawingState, getCurrentState(), recomputeVisibleRegions,
-                    getProducerStickyTransform() != 0, mName, mOverrideScalingMode,
+                    getProducerStickyTransform() != 0, mName,
                     getTransformToDisplayInverse());
 
     if (isRemovedFromCurrentState()) {