Revert "Gauss filter calculation"

This reverts commit 53ec7dc7cb523f220a9f5cd713b241c706779c81.

Reason for revert: Segv on very specific machines.

Original change's description:
> Gauss filter calculation
> 
> Change-Id: I921ef815d4f788c312aa729f353b6ea154140555
> Reviewed-on: https://skia-review.googlesource.com/67723
> Commit-Queue: Herb Derby <herb@google.com>
> Reviewed-by: Robert Phillips <robertphillips@google.com>

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

Change-Id: I15164809d081dee0076e815b40fbfdbc6374cfba
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://skia-review.googlesource.com/69641
Reviewed-by: Herb Derby <herb@google.com>
Commit-Queue: Herb Derby <herb@google.com>

1 files changed, 0 insertions, 41 deletions

diff --git a/src/core/SkGaussFilter.h b/src/core/SkGaussFilter.h
deleted file mode 100644
index 9af45c875b..0000000000
--- a/src/core/SkGaussFilter.h
+++ /dev/null
@@ -1,41 +0,0 @@
-/*
- * Copyright 2017 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#ifndef SkGaussFilter_DEFINED
-#define SkGaussFilter_DEFINED
-
-#include <cstdint>
-
-// Define gaussian filters for values of sigma < 2. Produce values good to 1 part in 1,000,000.
-// Gaussian produces values as defined in the SVG 1.1 spec:
-// https://www.w3.org/TR/SVG/filters.html#feGaussianBlurElement
-// Bessel produces values as defined in "Scale-Space for Discrete Signals" by Tony Lindeberg
-class SkGaussFilter {
-public:
-    enum class Type : bool {
-        Gaussian,
-        Bessel
-    };
-
-    // Type selects which method is used to calculate the gaussian factors.
-    SkGaussFilter(double sigma, Type type);
-
-    int radius() const { return fN - 1; }
-    int width() const { return 2 * this->radius() + 1; }
-
-    // Take an array of values where the gaussian factors will be placed. Return the number of
-    // values filled.
-    int filterDouble(double values[5]) const;
-
-private:
-    double fBasis[5];
-    int    fN;
-};
-
-#endif  // SkGaussFilter_DEFINED
-
-