remove arrayOk

Author: emilykl

src/components/fx/attributes.js

@@ -21,7 +21,7 @@ module.exports = {
         }),
         align: extendFlat({}, hoverLabelAttrs.align, {arrayOk: true}),
         namelength: extendFlat({}, hoverLabelAttrs.namelength, {arrayOk: true}),
-        showarrow: extendFlat({}, hoverLabelAttrs.showarrow, {arrayOk: true}),
+        showarrow: extendFlat({}, hoverLabelAttrs.showarrow),
         editType: 'none'
     }
 };