Suppress unnamed library analyzer spam in shelldb

sky/sdk/lib/framework/animation/curves.dart

Index: sky/sdk/lib/framework/animation/curves.dart
diff --git a/sky/sdk/lib/framework/animation/curves.dart b/sky/sdk/lib/framework/animation/curves.dart
index 66cf0e26e89c58ce7096756893aadfbfa9fe6009..8e285762e7e424a2d4530797e52113f6038b9fa9 100644
--- a/sky/sdk/lib/framework/animation/curves.dart
+++ b/sky/sdk/lib/framework/animation/curves.dart
@@ -2,8 +2,6 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-library animation_curves;
-
 double _evaluateCubic(double a, double b, double m) {
   // TODO(abarth): Would Math.pow be faster?
   return 3 * a * (1 - m) * (1 - m) * m + 3 * b * (1 - m) * m * m + m * m * m;