Revert "bucket aggregations: render only if several buckets"

This reverts commit f2b63dd.

Author: zzacharo

src/lib/components/BucketAggregation/BucketAggregation.js

@@ -67,10 +67,9 @@ class BucketAggregation extends Component {
       this.props;
     const selectedFilters = this._getSelectedFilters(userSelectionFilters);
     const resultBuckets = this._getResultBuckets(resultsAggregations);
-    const valuesCmp =
-      resultBuckets.length > 1
-        ? this._renderValues(resultBuckets, selectedFilters)
-        : null;
+    const valuesCmp = resultBuckets.length
+      ? this._renderValues(resultBuckets, selectedFilters)
+      : null;
     return (
       <Element
         title={this.title}