Revert "dart2js cps: Introduce GetStatic/SetStatic."

pkg/compiler/lib/src/cps_ir/cps_ir_tracer.dart

Index: pkg/compiler/lib/src/cps_ir/cps_ir_tracer.dart
diff --git a/pkg/compiler/lib/src/cps_ir/cps_ir_tracer.dart b/pkg/compiler/lib/src/cps_ir/cps_ir_tracer.dart
index 16e247f019ca2162f858cacb37c3adbabb9b1007..a807214f2ed75eafc917023cbaccec617e53e723 100644
--- a/pkg/compiler/lib/src/cps_ir/cps_ir_tracer.dart
+++ b/pkg/compiler/lib/src/cps_ir/cps_ir_tracer.dart
@@ -316,19 +316,6 @@ class IRTracer extends TracerUtil implements cps_ir.Visitor {
     return 'GetField($object.$field)';
   }
 
-  visitGetStatic(cps_ir.GetStatic node) {
-    String element = node.element.name;
-    return 'GetStatic($element)';
-  }
-
-  visitSetStatic(cps_ir.SetStatic node) {
-    String dummy = names.name(node);
-    String element = node.element.name;
-    String value = formatReference(node.value);
-    printStmt(dummy, 'SetStatic $element = $value');
-    visit(node.body);
-  }
-
   visitCreateBox(cps_ir.CreateBox node) {
     return 'CreateBox';
   }
@@ -552,10 +539,6 @@ class BlockCollector implements cps_ir.Visitor {
     visit(exp.body);
   }
 
-  visitSetStatic(cps_ir.SetStatic exp) {
-    visit(exp.body);
-  }
-
   visitDeclareFunction(cps_ir.DeclareFunction exp) {
     visit(exp.body);
   }
@@ -615,9 +598,6 @@ class BlockCollector implements cps_ir.Visitor {
   visitGetField(cps_ir.GetField node) {
     unexpectedNode(node);
   }
-  visitGetStatic(cps_ir.GetStatic node) {
-    unexpectedNode(node);
-  }
   visitCreateBox(cps_ir.CreateBox node) {
     unexpectedNode(node);
   }