Delete unused clip parameter in clearWithOpenGL

Change-Id: Idc31d6cfe0c804fd6c5528432e1179f920e231b3
diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index 73074cb..af6b3d0 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp
@@ -2224,7 +2224,7 @@
                                 && hasClientComposition) {
                             // never clear the very first layer since we're
                             // guaranteed the FB is already cleared
-                            layer->clearWithOpenGL(displayDevice, clip);
+                            layer->clearWithOpenGL(displayDevice);
                         }
                         break;
                     }