Remove the --no-error-notification flag.

pkg/analyzer_plugin/doc/api.html

Index: pkg/analyzer_plugin/doc/api.html
diff --git a/pkg/analyzer_plugin/doc/api.html b/pkg/analyzer_plugin/doc/api.html
index 7f92857e1afeec4cfb8fba40587160d57ff9b81b..42a9509ab2f40f8b706a4f67c2bd0d1f841c2964 100644
--- a/pkg/analyzer_plugin/doc/api.html
+++ b/pkg/analyzer_plugin/doc/api.html
@@ -447,11 +447,7 @@ a:focus, a:hover {
       included in the notification is always a complete list that supersedes any
       previously reported errors.
     </p>
-    <p>
-      TODO: Decide whether we need to support the '--no-error-notification'
-      option.
-    </p>
-    
+
   <h4>parameters:</h4><dl><dt class="field"><b>file (<a href="#type_FilePath">FilePath</a>)</b></dt><dd>
         
         <p>