fix(mod/dashboard): use deleteKey() not delete_key()

small bug I overlooked while refactoring all of the dashboard function
names to be more "javascripty"

mod/dashboard/app/scripts/controllers/browser.js

@@ -113,7 +113,7 @@ angular.module('etcdBrowser', ['ngRoute', 'etcd', 'timeRelative'])
     }).error(function (data, status, headers, config) {
       //TODO: remove loader
       //show errors
-      $scope.showBrowseError('Error: Could not delete the key');
+      $scope.showBrowseError('Could not delete the key');
     });
   };
 

mod/dashboard/app/views/browser.html

@@ -64,7 +64,7 @@
 			        <td>
 			            <div class="etcd-actions">
 			                <div class="etcd-delete" ng-switch on="!!key.dir">
-			                    <svg ng-switch-when="false" ng-click="delete_key()" version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"
+			                    <svg ng-switch-when="false" ng-click="deleteKey()" version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"
 			                    x="0px" y="0px" preserveAspectRatio="xMinYMin" viewBox="0 0 76.143 61" enable-background="new 0 0 76.143 61" xml:space="preserve">
 			                    <path d="M49.41,13.505l-6.035,6.035L27.112,35.803l-6.035,6.035c-1.562,1.562-1.562,4.095,0,5.657c1.562,1.562,4.095,1.562,5.657,0
 			                    l6.05-6.05l16.234-16.234l6.05-6.05c1.562-1.562,1.562-4.095,0-5.657C53.505,11.943,50.972,11.943,49.41,13.505z"/>