Added search clear functionality to filtering

Change-Id: Id22b067c8bcc0e05aee6325153154ea7a81f17ae
Signed-off-by: Iftekharul Islam <iislam@us.ibm.com>
diff --git a/app/server-health/controllers/sensors-overview-controller.html b/app/server-health/controllers/sensors-overview-controller.html
index 95631e8..efd60a5 100644
--- a/app/server-health/controllers/sensors-overview-controller.html
+++ b/app/server-health/controllers/sensors-overview-controller.html
@@ -16,7 +16,7 @@
 			<label for="content__search-input">Sensors Search</label>
 			<input id="content__search-input" type="text" ng-model="customSearch" ng-keydown="doSearchOnEnter($event)"/>
 			<div class="search-submit__wrapper">
-				<button class="clear-input" ng-click="customSearch = ''">&#10005;</button>
+				<button class="clear-input" ng-click="clear()">&#10005;</button>
 				<input id="content__search-submit" type="submit" class="btn btn-primary content__search-submit" value="Filter" ng-click="doSearchOnClick()"/>
 			</div>