Removed deprecated CreateRenderPipeline path

Renames all the RenderPipeline*2 stuff to simple RenderPipeline* but
keeps *2 definitionas around as typedefs and wrappers so that users can
migrate away from it.

Bug: dawn:22
Change-Id: If301d81a829bba0646c3a61068f2279932b191e0
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/51764
Commit-Queue: Brandon Jones <bajones@chromium.org>
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
diff --git a/src/dawn_native/opengl/RenderPipelineGL.cpp b/src/dawn_native/opengl/RenderPipelineGL.cpp
index 2511786..4cd55dd 100644
--- a/src/dawn_native/opengl/RenderPipelineGL.cpp
+++ b/src/dawn_native/opengl/RenderPipelineGL.cpp
@@ -219,7 +219,7 @@
 
     }  // anonymous namespace
 
-    RenderPipeline::RenderPipeline(Device* device, const RenderPipelineDescriptor2* descriptor)
+    RenderPipeline::RenderPipeline(Device* device, const RenderPipelineDescriptor* descriptor)
         : RenderPipelineBase(device, descriptor),
           mVertexArrayObject(0),
           mGlPrimitiveTopology(GLPrimitiveTopology(GetPrimitiveTopology())) {