Get rid of all the library tags.

lib/src/command/global_deactivate.dart

 // Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-library pub.command.global_deactivate;
-
 import '../command.dart';
 import '../log.dart' as log;
 import '../utils.dart';
 
 /// Handles the `global deactivate` pub command.
 class GlobalDeactivateCommand extends PubCommand {
   String get name => "deactivate";
   String get description => "Remove a previously activated package.";
   String get invocation => "pub global deactivate <package>";
 
   void run() {
     // Make sure there is a package.
     if (argResults.rest.isEmpty) {
       usageException("No package to deactivate given.");
     }
 
     // Don't allow extra arguments.
     if (argResults.rest.length > 1) {
       var unexpected = argResults.rest.skip(1).map((arg) => '"$arg"');
       var arguments = pluralize("argument", unexpected.length);
       usageException("Unexpected $arguments ${toSentence(unexpected)}.");
     }
 
     if (!globals.deactivate(argResults.rest.first)) {
       dataError("No active package ${log.bold(argResults.rest.first)}.");
     }
   }
 }