dart2js: Don't emit additional precompiled file.

pkg/compiler/lib/src/js_emitter/old_emitter/emitter.dart

Index: pkg/compiler/lib/src/js_emitter/old_emitter/emitter.dart
diff --git a/pkg/compiler/lib/src/js_emitter/old_emitter/emitter.dart b/pkg/compiler/lib/src/js_emitter/old_emitter/emitter.dart
index f8740569495da8f5613a8cd160ace7ccb50ad7ca..fd49c22f886cc1caaee8ec3105a72f73d7829941 100644
--- a/pkg/compiler/lib/src/js_emitter/old_emitter/emitter.dart
+++ b/pkg/compiler/lib/src/js_emitter/old_emitter/emitter.dart
@@ -1672,34 +1672,6 @@ class OldEmitter implements Emitter {
         ..add(assembledCode)
         ..close();
     compiler.assembledCode = assembledCode;
-
-    if (!compiler.useContentSecurityPolicy) {
-      CodeBuffer cspBuffer = new CodeBuffer();
-      cspBuffer.add(mainBuffer);
-      cspBuffer.write("""
-{
-  var message =
-      'Deprecation: Automatic generation of output for Content Security\\n' +
-      'Policy is deprecated and will be removed with the next development\\n' +
-      'release. Use the --csp option to generate CSP restricted output.';
-  if (typeof dartPrint == "function") {
-    dartPrint(message);
-  } else if (typeof console == "object" && typeof console.log == "function") {
-    console.log(message);
-  } else if (typeof print == "function") {
-    print(message);
-  }
-}\n""");
-
-      cspBuffer.write(
-          jsAst.prettyPrint(
-              precompiledFunctionAst, compiler,
-              allowVariableMinification: false).getText());
-
-      compiler.outputProvider('', 'precompiled.js')
-          ..add(cspBuffer.getText())
-          ..close();
-    }
   }
 
   /// Returns a map from OutputUnit to a hash of its content. The hash uniquely