Revert "Direct evaluation of gaussian"

This reverts commit 5e18cdea0a0a3f23d8e8b8140c82a4b54e121402.

Reason for revert: ASAN
Original change's description:
> Direct evaluation of gaussian
> 
> The SVG(CSS) standard allows the 3 pass algorithm for sigma >= 2. But
> sigma < 2, the code must evaluate to the convolution. The old code used
> an interpolation scheme between windowed filters. This code directly
> evaluates the gaussian kernel for sigma < 2.
> 
> This code produces cleaner results, is 25% faster, and does not use a
> temporary memory buffer.
> 
> Change-Id: Ibd0caa73cadd06b637f55ba7bd4fefcfe7ac73db
> Reviewed-on: https://skia-review.googlesource.com/62540
> Commit-Queue: Herb Derby <herb@google.com>
> Reviewed-by: Mike Klein <mtklein@google.com>

TBR=mtklein@google.com,herb@google.com

Change-Id: I936077dfa659d71bc361339d98340c55545a1eb8
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://skia-review.googlesource.com/72481
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>

1 files changed, 0 insertions, 6 deletions

diff --git a/src/core/SkGaussFilter.h b/src/core/SkGaussFilter.h
index be00cf2cc0..9af45c875b 100644
--- a/src/core/SkGaussFilter.h
+++ b/src/core/SkGaussFilter.h
@@ -27,16 +27,10 @@ public:
     int radius() const { return fN - 1; }
     int width() const { return 2 * this->radius() + 1; }
 
-    // TODO: remove filterDouble and use the ranged-for loop interface.
-
     // Take an array of values where the gaussian factors will be placed. Return the number of
     // values filled.
     int filterDouble(double values[5]) const;
 
-    // Allow a filter to be used in a C++ ranged-for loop.
-    const double* begin() const { return &fBasis[0];  }
-    const double* end()   const { return &fBasis[fN]; }
-
 private:
     double fBasis[5];
     int    fN;