Re-enable MRT on D3D 10 and 10.1 cards.

BUG=angle:670

Change-Id: I88b4823f25ec28fa52831d856ff9fb836fdfc533
Reviewed-on: https://chromium-review.googlesource.com/203120
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Tested-by: Geoff Lang <geofflang@chromium.org>
diff --git a/src/libGLESv2/renderer/d3d11/Renderer11.cpp b/src/libGLESv2/renderer/d3d11/Renderer11.cpp
index c018bda..8b57277 100644
--- a/src/libGLESv2/renderer/d3d11/Renderer11.cpp
+++ b/src/libGLESv2/renderer/d3d11/Renderer11.cpp
@@ -2237,10 +2237,7 @@
         return D3D11_SIMULTANEOUS_RENDER_TARGET_COUNT;  // 8
       case D3D_FEATURE_LEVEL_10_1:
       case D3D_FEATURE_LEVEL_10_0:
-        // Feature level 10.0 and 10.1 cards perform very poorly when the pixel shader
-        // outputs to multiple RTs that are not bound.
-        // TODO: Remove pixel shader outputs for render targets that are not bound.
-        return 1;
+        return D3D10_SIMULTANEOUS_RENDER_TARGET_COUNT;  // 8
       default:
         UNREACHABLE();
         return 1;