Remove points from fixed function.
Add basic GL performance test.

Change-Id: I421a41b6683b2c5f70045cdd0f610a6939105fee
diff --git a/libs/rs/rsVertexArray.cpp b/libs/rs/rsVertexArray.cpp
index 6937a85..001927c 100644
--- a/libs/rs/rsVertexArray.cpp
+++ b/libs/rs/rsVertexArray.cpp
@@ -144,10 +144,8 @@
                 slot = 1;
             } else if (mAttribs[ct].name == "normal") {
                 slot = 2;
-            } else if (mAttribs[ct].name == "pointSize") {
-                slot = 3;
             } else if (mAttribs[ct].name == "texture0") {
-                slot = 4;
+                slot = 3;
             } else {
                 continue;
             }