Revert "added GrSkSLFP and converted DitherEffect to use it"

This reverts commit dfbfc738a9edfff7a9804253175e380c230f3d21.

Reason for revert: Seems to be breaking DDL/ASAN bots

Original change's description:
> added GrSkSLFP and converted DitherEffect to use it
>
> Bug: skia:
> Change-Id: I84b71165eab1712355f3c7669cee2d33d259f3df
> Reviewed-on: https://skia-review.googlesource.com/124504
> Commit-Queue: Ethan Nicholas <ethannicholas@google.com>
> Reviewed-by: Brian Salomon <bsalomon@google.com>

TBR=bsalomon@google.com,ethannicholas@google.com

Change-Id: Ic4c3978aaba0391f2f8bb1316a456e3821a3a2f2
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: skia:
Reviewed-on: https://skia-review.googlesource.com/135700
Commit-Queue: Kevin Lubick <kjlubick@google.com>
Reviewed-by: Kevin Lubick <kjlubick@google.com>

1 files changed, 1 insertions, 10 deletions

diff --git a/src/sksl/ir/SkSLFunctionReference.h b/src/sksl/ir/SkSLFunctionReference.h
index 4c7f7670d0..58fefce801 100644
--- a/src/sksl/ir/SkSLFunctionReference.h
+++ b/src/sksl/ir/SkSLFunctionReference.h
@@ -28,10 +28,6 @@ struct FunctionReference : public Expression {
         return false;
     }
 
-    std::unique_ptr<Expression> clone() const override {
-        return std::unique_ptr<Expression>(new FunctionReference(fOffset, fFunctions, &fType));
-    }
-
     String description() const override {
         return String("<function>");
     }
@@ -39,12 +35,7 @@ struct FunctionReference : public Expression {
     const std::vector<const FunctionDeclaration*> fFunctions;
 
     typedef Expression INHERITED;
-
-private:
-    FunctionReference(int offset, std::vector<const FunctionDeclaration*> function,
-                      const Type* type)
-    : INHERITED(offset, kFunctionReference_Kind, *type)
-    , fFunctions(function) {}};
+};
 
 } // namespace