Remove code supporting incremental compilation in dart2js

pkg/compiler/lib/src/js_emitter/full_emitter/setup_program_builder.dart

Index: pkg/compiler/lib/src/js_emitter/full_emitter/setup_program_builder.dart
diff --git a/pkg/compiler/lib/src/js_emitter/full_emitter/setup_program_builder.dart b/pkg/compiler/lib/src/js_emitter/full_emitter/setup_program_builder.dart
index a8dc281852d2c19ee3715307976ecee989ffe4c4..402845b41f3be403414b2d30cfd6d0c84a0fb6db 100644
--- a/pkg/compiler/lib/src/js_emitter/full_emitter/setup_program_builder.dart
+++ b/pkg/compiler/lib/src/js_emitter/full_emitter/setup_program_builder.dart
@@ -111,8 +111,6 @@ jsAst.Statement buildSetupProgram(Program program, Compiler compiler,
     'deferredAction': namer.deferredAction,
     'hasIsolateSupport': program.hasIsolateSupport,
     'fieldNamesProperty': js.string(Emitter.FIELD_NAMES_PROPERTY_NAME),
-    'hasIncrementalSupport': compiler.options.hasIncrementalSupport,
-    'incrementalHelper': namer.accessIncrementalHelper,
     'createNewIsolateFunction': createNewIsolateFunctionAccess,
     'isolateName': namer.isolateName,
     'classIdExtractor': classIdExtractorAccess,
@@ -256,10 +254,6 @@ function $setupProgramName(programData, typesOffset) {
       return str;
     }
 
-    if (#hasIncrementalSupport) {
-      #incrementalHelper.defineClass = defineClass;
-    }
-
     if (#hasIsolateSupport) {
       #createNewIsolateFunction = function() { return new #isolateName(); };
 
@@ -318,10 +312,6 @@ function $setupProgramName(programData, typesOffset) {
         };
       }();
 
-     if (#hasIncrementalSupport) {
-       #incrementalHelper.inheritFrom = inheritFrom;
-     }
-
     // Class descriptions are collected in a JS object.
     // 'finishClasses' takes all collected descriptions and sets up
     // the prototype.
@@ -762,10 +752,6 @@ function $setupProgramName(programData, typesOffset) {
     #tearOffCode;
   }
 
-  if (#hasIncrementalSupport) {
-    #incrementalHelper.addStubs = addStubs;
-  }
-
   var functionCounter = 0;
   if (!#libraries) #libraries = [];
   if (!#mangledNames) #mangledNames = map();