docs: remove duplicate entry from the changelog

Author: Matt Lewis

CHANGELOG.md

@@ -12,17 +12,6 @@ All notable changes to this project will be documented in this file. See [standa
 * **monthView:** cell events should be clickable ([d61719e](https://github.com/mattlewis92/angular-calendar/commit/d61719e)), closes [#111](https://github.com/mattlewis92/angular-calendar/issues/111)
 
 
-### Features
-
-* **draggable:** allow external draggable events ([8ba068c](https://github.com/mattlewis92/angular-calendar/commit/8ba068c)), closes [#106](https://github.com/mattlewis92/angular-calendar/issues/106)
-
-
-### BREAKING CHANGES
-
-* draggable: if not using CalendarModule.forRoot() and manually adding providers you must now also include the DraggableHelper from the angular-draggable-droppable module
-
-
-
 <a name="0.6.0"></a>
 # [0.6.0](https://github.com/mattlewis92/angular-calendar/compare/v0.5.0...v0.6.0) (2016-12-21)