fix(MdMenuContent): destroy keydown listener on Esc (#1766)

* fix(MdAutocomplete): destroy keydown listerner on Esc

* feat(MdMenuContent): remove console log

Author: Samuell1

src/components/MdMenu/MdMenuContent.vue

@@ -176,6 +176,7 @@
       },
       onEsc () {
         this.MdMenu.active = false
+        this.destroyKeyDownListener()
       },
       getOffsets () {
         const relativePosition = this.getBodyPosition()