Remove unused API.

dart/sdk/lib/_internal/compiler/implementation/ssa/codegen.dart

Index: dart/sdk/lib/_internal/compiler/implementation/ssa/codegen.dart
diff --git a/dart/sdk/lib/_internal/compiler/implementation/ssa/codegen.dart b/dart/sdk/lib/_internal/compiler/implementation/ssa/codegen.dart
index 1af7f49f8ff52a962415b0d216959bbb39b2c7a9..9bc7ee0864eb1a0511f67b6bd194299e28d3b1b4 100644
--- a/dart/sdk/lib/_internal/compiler/implementation/ssa/codegen.dart
+++ b/dart/sdk/lib/_internal/compiler/implementation/ssa/codegen.dart
@@ -65,11 +65,6 @@ class SsaCodeGeneratorTask extends CompilerTask {
     return attachPosition(new js.Fun(parameters, body), element);
   }
 
-  CodeBuffer prettyPrint(js.Node node) {
-    var code = js.prettyPrint(node, compiler, allowVariableMinification: true);
-    return code;
-  }
-
   js.Expression generateCode(CodegenWorkItem work, HGraph graph) {
     if (work.element.isField()) {
       return generateLazyInitializer(work, graph);
@@ -408,10 +403,6 @@ class SsaCodeGenerator implements HVisitor, HBlockInformationVisitor {
     return !identical(expressionType(info), TYPE_STATEMENT);
   }
 
-  bool isJSDeclaration(HExpressionInformation info) {
-    return identical(expressionType(info), TYPE_DECLARATION);
-  }
-
   bool isJSCondition(HExpressionInformation info) {
     HSubExpressionBlockInformation graph = info;
     SubExpression limits = graph.subExpression;
@@ -695,10 +686,6 @@ class SsaCodeGenerator implements HVisitor, HBlockInformationVisitor {
     return true;
   }
 
-  bool visitSequenceInfo(HStatementSequenceInformation info) {
-    return false;
-  }
-
   bool visitSubGraphInfo(HSubGraphBlockInformation info) {
     visitSubGraph(info.subGraph);
     return true;
@@ -708,10 +695,6 @@ class SsaCodeGenerator implements HVisitor, HBlockInformationVisitor {
     return false;
   }
 
-  bool visitAndOrInfo(HAndOrBlockInformation info) {
-    return false;
-  }
-
   bool visitTryInfo(HTryBlockInformation info) {
     js.Block body = generateStatementsInNewBlock(info.body);
     js.Catch catchPart = null;