[SurfaceFlinger] Remove unused functions.

BUG: 130887310
Test: Build
Change-Id: I4f44364fcf74ea9b2bf7e8eef8ba24112081fde4
diff --git a/services/surfaceflinger/CompositionEngine/include/compositionengine/impl/LayerCompositionState.h b/services/surfaceflinger/CompositionEngine/include/compositionengine/impl/LayerCompositionState.h
index 67bea4b..ab01c20 100644
--- a/services/surfaceflinger/CompositionEngine/include/compositionengine/impl/LayerCompositionState.h
+++ b/services/surfaceflinger/CompositionEngine/include/compositionengine/impl/LayerCompositionState.h
@@ -33,12 +33,6 @@
 
     LayerFECompositionState frontEnd;
 
-    /*
-     * RE state
-     */
-
-    renderengine::Mesh reMesh{renderengine::Mesh::TRIANGLE_FAN, 4, 2, 2};
-
     // Debugging
     void dump(std::string& result) const;
 };
diff --git a/services/surfaceflinger/Layer.cpp b/services/surfaceflinger/Layer.cpp
index b6323a2..8249b03 100644
--- a/services/surfaceflinger/Layer.cpp
+++ b/services/surfaceflinger/Layer.cpp
@@ -382,13 +382,6 @@
     win.right -= roundedCornersCrop.left;
     win.top -= roundedCornersCrop.top;
     win.bottom -= roundedCornersCrop.top;
-
-    renderengine::Mesh::VertexArray<vec2> cropCoords(
-            getCompositionLayer()->editState().reMesh.getCropCoordArray<vec2>());
-    cropCoords[0] = vec2(win.left, win.top);
-    cropCoords[1] = vec2(win.left, win.top + win.getHeight());
-    cropCoords[2] = vec2(win.right, win.top + win.getHeight());
-    cropCoords[3] = vec2(win.right, win.top);
 }
 
 void Layer::latchGeometry(compositionengine::LayerFECompositionState& compositionState) const {
@@ -540,18 +533,6 @@
     return true;
 }
 
-void Layer::clearWithOpenGL(const RenderArea& renderArea, float red, float green, float blue,
-                            float alpha) const {
-    auto& engine(mFlinger->getRenderEngine());
-    computeGeometry(renderArea, getCompositionLayer()->editState().reMesh, false);
-    engine.setupFillWithColor(red, green, blue, alpha);
-    engine.drawMesh(getCompositionLayer()->getState().reMesh);
-}
-
-void Layer::clearWithOpenGL(const RenderArea& renderArea) const {
-    clearWithOpenGL(renderArea, 0, 0, 0, 0);
-}
-
 void Layer::setCompositionType(const sp<const DisplayDevice>& display,
                                Hwc2::IComposerClient::Composition type) {
     const auto outputLayer = findOutputLayerForDisplay(display);
diff --git a/services/surfaceflinger/Layer.h b/services/surfaceflinger/Layer.h
index c76394c..a8b72a0 100644
--- a/services/surfaceflinger/Layer.h
+++ b/services/surfaceflinger/Layer.h
@@ -603,9 +603,6 @@
     bool hasHwcLayer(const sp<const DisplayDevice>& displayDevice);
     HWC2::Layer* getHwcLayer(const sp<const DisplayDevice>& displayDevice);
 
-    // -----------------------------------------------------------------------
-    void clearWithOpenGL(const RenderArea& renderArea) const;
-
     inline const State& getDrawingState() const { return mDrawingState; }
     inline const State& getCurrentState() const { return mCurrentState; }
     inline State& getCurrentState() { return mCurrentState; }
@@ -729,12 +726,7 @@
      * crop coordinates, transforming them into layer space.
      */
     void setupRoundedCornersCropCoordinates(Rect win, const FloatRect& roundedCornersCrop) const;
-
-    // drawing
-    void clearWithOpenGL(const RenderArea& renderArea, float r, float g, float b,
-                         float alpha) const;
     void setParent(const sp<Layer>& layer);
-
     LayerVector makeTraversalList(LayerVector::StateSet stateSet, bool* outSkipRelativeZUsers);
     void addZOrderRelative(const wp<Layer>& relative);
     void removeZOrderRelative(const wp<Layer>& relative);