Revert "sksl fragment processor support"

This reverts commit ccf59917d3fe7aaf59de714acfbd0596503f324f.

Reason for revert: breaking iOS bots

Original change's description:
> sksl fragment processor support
> 
> Bug: skia:
> Change-Id: Ia3b0305c2b0c78074303831f628fb01852b90d34
> Reviewed-on: https://skia-review.googlesource.com/17843
> Commit-Queue: Ethan Nicholas <ethannicholas@google.com>
> Reviewed-by: Ben Wagner <benjaminwagner@google.com>
> Reviewed-by: Mike Klein <mtklein@google.com>

TBR=mtklein@google.com,benjaminwagner@google.com,ethannicholas@google.com

Change-Id: I0a33060c7c42c7b44c5c13d443ac42958291c2f1
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: skia:
Reviewed-on: https://skia-review.googlesource.com/20962
Reviewed-by: Ethan Nicholas <ethannicholas@google.com>
Commit-Queue: Ethan Nicholas <ethannicholas@google.com>

1 files changed, 0 insertions, 7 deletions

diff --git a/src/sksl/ir/SkSLVariableReference.h b/src/sksl/ir/SkSLVariableReference.h
index ba17437e24..92aef94290 100644
--- a/src/sksl/ir/SkSLVariableReference.h
+++ b/src/sksl/ir/SkSLVariableReference.h
@@ -14,7 +14,6 @@
 #include "SkSLFloatLiteral.h"
 #include "SkSLIRGenerator.h"
 #include "SkSLIntLiteral.h"
-#include "SkSLSetting.h"
 
 namespace SkSL {
 
@@ -105,12 +104,6 @@ struct VariableReference : public Expression {
                 return std::unique_ptr<Expression>(new Constructor(Position(), c->fType,
                                                                    std::move(args)));
             }
-            case Expression::kSetting_Kind: {
-                const Setting* s = (const Setting*) expr;
-                return std::unique_ptr<Expression>(new Setting(Position(), s->fName,
-                                                               copy_constant(irGenerator,
-                                                                             s->fValue.get())));
-            }
             default:
                 ABORT("unsupported constant\n");
         }