Remove unused method

Bug: 117921091
Test: all tests should pass
Change-Id: I8830e061e30a73e1ea2accda8c9a4268818f5b80
diff --git a/libs/hwui/renderthread/CanvasContext.h b/libs/hwui/renderthread/CanvasContext.h
index 0910828..a44edaa 100644
--- a/libs/hwui/renderthread/CanvasContext.h
+++ b/libs/hwui/renderthread/CanvasContext.h
@@ -150,8 +150,6 @@
 
     void setContentDrawBounds(const Rect& bounds) { mContentDrawBounds = bounds; }
 
-    RenderState& getRenderState() { return mRenderThread.renderState(); }
-
     void addFrameMetricsObserver(FrameMetricsObserver* observer) {
         if (mFrameMetricsReporter.get() == nullptr) {
             mFrameMetricsReporter.reset(new FrameMetricsReporter());