horizon : properly clean existing label

app/modules/dashboard/health/view.jade

@@ -140,14 +140,14 @@
             chart-data='stat'
             show-axis='true'
             axis-orientation='top'
-            selected='cubism.selected'
+            selected='cubism.selectedDate'
             extent='cubism.extents'
             label='{{label}}'
           )
           horizon(
             ng-if='$middle'
             chart-data='stat'
-            selected='cubism.selected'
+            selected='cubism.selectedDate'
             extent='cubism.extents'
             label='{{label}}'
           )
@@ -156,7 +156,7 @@
             chart-data='stat'
             show-axis='true'
             axis-orientation='bottom'
-            selected='cubism.selected'
+            selected='cubism.selectedDate'
             extent='cubism.extents'
             label='{{label}}'
           )

app/node_modules/xo-horizon/index.js

@@ -60,7 +60,6 @@ export default angular.module('xoHorizon', [])
         return x(d.date)
       })
       .y(function (d) {
-        const val = y(d.value)
         return y(d.value)
       })
 
@@ -205,7 +204,9 @@ export default angular.module('xoHorizon', [])
         bottomaxis.selectAll('text').style({fill: 'black', stroke: 'transparent'})
       }
       svg.selectAll('.horizon-area').remove()
-
+      if (label) {
+        label.remove()
+      }
       forEach(splittedData, function (oneSplitted) {
         svg
         .append('path')