Revert of Turned on SkSL->GLSL compiler

src/sksl/SkSLCompiler.cpp

Index: src/sksl/SkSLCompiler.cpp
diff --git a/src/sksl/SkSLCompiler.cpp b/src/sksl/SkSLCompiler.cpp
index b57e6733f5a45be97b9b43b86e9c40b220e2ed10..d2ad81223e8c495e73546e4375b09f84db1b1eef 100644
--- a/src/sksl/SkSLCompiler.cpp
+++ b/src/sksl/SkSLCompiler.cpp
@@ -15,7 +15,6 @@
 #include "SkSLSPIRVCodeGenerator.h"
 #include "ir/SkSLExpression.h"
 #include "ir/SkSLIntLiteral.h"
-#include "ir/SkSLModifiersDeclaration.h"
 #include "ir/SkSLSymbolTable.h"
 #include "ir/SkSLVarDeclaration.h"
 #include "SkMutex.h"
@@ -98,7 +97,6 @@
     ADD_TYPE(Sampler1D);
     ADD_TYPE(Sampler2D);
     ADD_TYPE(Sampler3D);
-    ADD_TYPE(SamplerExternalOES);
     ADD_TYPE(SamplerCube);
     ADD_TYPE(Sampler2DRect);
     ADD_TYPE(Sampler1DArray);
@@ -132,7 +130,6 @@
 
     std::vector<std::unique_ptr<ProgramElement>> ignored;
     this->internalConvertProgram(SKSL_INCLUDE, &ignored);
-    printf("%s", errorText().c_str());
     ASSERT(!fErrorCount);
 }
 
@@ -162,14 +159,6 @@
             case ASTDeclaration::kFunction_Kind: {
                 std::unique_ptr<FunctionDefinition> f = fIRGenerator->convertFunction(
                                                                                (ASTFunction&) decl);
-                if (f) {
-                    result->push_back(std::move(f));
-                }
-                break;
-            }
-            case ASTDeclaration::kModifiers_Kind: {
-                std::unique_ptr<ModifiersDeclaration> f = fIRGenerator->convertModifiersDeclaration(
-                                                                   (ASTModifiersDeclaration&) decl);
                 if (f) {
                     result->push_back(std::move(f));
                 }