[General] remove dupe, debounce inputs

Remove duplicate ClickAwayController implementation that was obscuring actual
implementation.  Debounce clickaway action in case toggle is invoked in a
click handler.

Resolves https://github.com/nasa/openmct/issues/888

platform/search/bundle.js

@@ -24,7 +24,6 @@
 define([
     "./src/controllers/SearchController",
     "./src/controllers/SearchMenuController",
-    "./src/controllers/ClickAwayController",
     "./src/services/GenericSearchProvider",
     "./src/services/SearchAggregator",
     "text!./res/templates/search-item.html",
@@ -34,7 +33,6 @@ define([
 ], function (
     SearchController,
     SearchMenuController,
-    ClickAwayController,
     GenericSearchProvider,
     SearchAggregator,
     searchItemTemplate,
@@ -73,14 +71,6 @@ define([
                         "$scope",
                         "types[]"
                     ]
-                },
-                {
-                    "key": "ClickAwayController",
-                    "implementation": ClickAwayController,
-                    "depends": [
-                        "$scope",
-                        "$document"
-                    ]
                 }
             ],
             "representations": [