Remove unused API.

dart/sdk/lib/_internal/compiler/implementation/js_backend/constant_system_javascript.dart

Index: dart/sdk/lib/_internal/compiler/implementation/js_backend/constant_system_javascript.dart
diff --git a/dart/sdk/lib/_internal/compiler/implementation/js_backend/constant_system_javascript.dart b/dart/sdk/lib/_internal/compiler/implementation/js_backend/constant_system_javascript.dart
index e966bc25cef9e4371415e14d8ddf579bdfcf6bf2..206b3df6e620130ba319d2eaa37c96305c4b6930 100644
--- a/dart/sdk/lib/_internal/compiler/implementation/js_backend/constant_system_javascript.dart
+++ b/dart/sdk/lib/_internal/compiler/implementation/js_backend/constant_system_javascript.dart
@@ -30,7 +30,6 @@ class JavaScriptBinaryBitOperation implements BinaryOperation {
 
   const JavaScriptBinaryBitOperation(this.dartBitOperation);
 
-  bool isUserDefinable() => dartBitOperation.isUserDefinable();
   String get name => dartBitOperation.name;
 
   Constant fold(Constant left, Constant right) {
@@ -79,7 +78,6 @@ class JavaScriptNegateOperation implements UnaryOperation {
 
   const JavaScriptNegateOperation();
 
-  bool isUserDefinable() => dartNegateOperation.isUserDefinable();
   String get name => dartNegateOperation.name;
 
   Constant fold(Constant constant) {
@@ -91,7 +89,6 @@ class JavaScriptNegateOperation implements UnaryOperation {
     }
     return dartNegateOperation.fold(constant);
   }
-  apply(value) => -value;

[Johnni Winther, 2013/12/03 11:52:31]

Remove only together with UnaryOperation.apply.

 }
 
 class JavaScriptBinaryArithmeticOperation implements BinaryOperation {
@@ -99,7 +96,6 @@ class JavaScriptBinaryArithmeticOperation implements BinaryOperation {
 
   const JavaScriptBinaryArithmeticOperation(this.dartArithmeticOperation);
 
-  bool isUserDefinable() => dartArithmeticOperation.isUserDefinable();
   String get name => dartArithmeticOperation.name;
 
   Constant fold(Constant left, Constant right) {
@@ -116,7 +112,6 @@ class JavaScriptIdentityOperation implements BinaryOperation {
 
   const JavaScriptIdentityOperation();
 
-  bool isUserDefinable() => dartIdentityOperation.isUserDefinable();
   String get name => dartIdentityOperation.name;
 
   BoolConstant fold(Constant left, Constant right) {