Revert "dart2js cps: Introduce GetStatic/SetStatic."

pkg/compiler/lib/src/tree_ir/tree_ir_builder.dart

Index: pkg/compiler/lib/src/tree_ir/tree_ir_builder.dart
diff --git a/pkg/compiler/lib/src/tree_ir/tree_ir_builder.dart b/pkg/compiler/lib/src/tree_ir/tree_ir_builder.dart
index 5b5f16864322b713cdc886a056a105510e47bf00..127ae915abe69d7cc432a7d9674923d30468185a 100644
--- a/pkg/compiler/lib/src/tree_ir/tree_ir_builder.dart
+++ b/pkg/compiler/lib/src/tree_ir/tree_ir_builder.dart
@@ -662,17 +662,5 @@ class Builder implements cps_ir.Visitor<Node> {
         node.dartType,
         node.arguments.map(getVariableUse).toList());
   }
-
-  Expression visitGetStatic(cps_ir.GetStatic node) {
-    return new GetStatic(node.element, node.sourceInformation);
-  }
-
-  Statement visitSetStatic(cps_ir.SetStatic node) {
-    SetStatic setStatic = new SetStatic(
-        node.element,
-        getVariableUse(node.value),
-        node.sourceInformation);
-    return new ExpressionStatement(setStatic, visit(node.body));
-  }
 }