Revert of Turned on SkSL->GLSL compiler

src/sksl/ast/SkSLASTLayout.h

Index: src/sksl/ast/SkSLASTLayout.h
diff --git a/src/sksl/ast/SkSLASTLayout.h b/src/sksl/ast/SkSLASTLayout.h
index 515eb2bdbbbbca680eb4830ccb78b1b6ba5ba56f..08d67531c3cf9ac48c4f401fd978f5e2b12b091c 100644
--- a/src/sksl/ast/SkSLASTLayout.h
+++ b/src/sksl/ast/SkSLASTLayout.h
@@ -20,16 +20,13 @@
  */
 struct ASTLayout : public ASTNode {
     // For all parameters, a -1 means no value
-    ASTLayout(int location, int binding, int index, int set, int builtin, bool originUpperLeft,
-              bool overrideCoverage, bool blendSupportAllEquations)
+    ASTLayout(int location, int binding, int index, int set, int builtin, bool originUpperLeft)
     : fLocation(location)
     , fBinding(binding)
     , fIndex(index)
     , fSet(set)
     , fBuiltin(builtin)
-    , fOriginUpperLeft(originUpperLeft)
-    , fOverrideCoverage(overrideCoverage)
-    , fBlendSupportAllEquations(blendSupportAllEquations) {}
+    , fOriginUpperLeft(originUpperLeft) {}
 
     std::string description() const {
         std::string result;
@@ -58,14 +55,6 @@
             result += separator + "origin_upper_left";
             separator = ", ";
         }
-        if (fOverrideCoverage) {
-            result += separator + "override_coverage";
-            separator = ", ";
-        }
-        if (fBlendSupportAllEquations) {
-            result += separator + "blend_support_all_equations";
-            separator = ", ";
-        }
         if (result.length() > 0) {
             result = "layout (" + result + ")";
         }
@@ -78,8 +67,6 @@
     const int fSet;
     const int fBuiltin;
     const bool fOriginUpperLeft;
-    const bool fOverrideCoverage;
-    const bool fBlendSupportAllEquations;
 };
 
 } // namespace