dart2js cps: Cleanup.

pkg/compiler/lib/src/tree_ir/optimization/statement_rewriter.dart

Index: pkg/compiler/lib/src/tree_ir/optimization/statement_rewriter.dart
diff --git a/pkg/compiler/lib/src/tree_ir/optimization/statement_rewriter.dart b/pkg/compiler/lib/src/tree_ir/optimization/statement_rewriter.dart
index 382d9e9bb63d89f884f1315609efcc00d9f61915..8025ec3b2ff1feaf2aa896ccd5a63cab71b64b0d 100644
--- a/pkg/compiler/lib/src/tree_ir/optimization/statement_rewriter.dart
+++ b/pkg/compiler/lib/src/tree_ir/optimization/statement_rewriter.dart
@@ -350,7 +350,6 @@ class StatementRewriter extends Transformer implements Pass {
     return exp is Constant ||
            exp is This ||
            exp is CreateInvocationMirror ||
-           exp is InvokeStatic && exp.isEffectivelyConstant ||
            exp is Interceptor ||
            exp is ApplyBuiltinOperator ||
            exp is VariableUse && constantEnvironment.containsKey(exp.variable);