remove SkOpts::run_pipeline() declaration.

I missed this while removing SkRasterPipeline_opts.h.

It's just a declaration... this won't change any generated code.

Change-Id: I66f6e9fe5341e9ff6a91981da9275c944a63fee9
Reviewed-on: https://skia-review.googlesource.com/14325
Reviewed-by: Mike Klein <mtklein@chromium.org>
Commit-Queue: Mike Klein <mtklein@chromium.org>
diff --git a/src/core/SkOpts.h b/src/core/SkOpts.h
index 801b96d..bf9a963 100644
--- a/src/core/SkOpts.h
+++ b/src/core/SkOpts.h
@@ -59,8 +59,6 @@
         return hash_fn(data, bytes, seed);
     }
 
-    extern void (*run_pipeline)(size_t, size_t, const SkRasterPipeline::Stage*, int);
-
     extern void (*convolve_vertically)(const SkConvolutionFilter1D::ConvolutionFixed* filter_values,
                                        int filter_length, unsigned char* const* source_data_rows,
                                        int pixel_width, unsigned char* out_row, bool has_alpha);