Revert "enable click for pie like group titles as well"

This reverts commit 4c4a11b.

Author: archmoj

src/components/legend/get_legend_data.js

@@ -134,10 +134,19 @@ module.exports = function getLegendData(calcdata, opts) {
         if(reversed) legendData[i].reverse();
 
         if(groupTitle) {
+            var hasPieLike = false;
+            for(j = 0; j < legendData[i].length; j++) {
+                if(Registry.traceIs(legendData[i][j].trace, 'pie-like')) {
+                    hasPieLike = true;
+                    break;
+                }
+            }
+
             // set group title text
             legendData[i].unshift({
                 i: -1,
                 groupTitle: groupTitle,
+                noClick: hasPieLike,
                 trace: {
                     showlegend: firstItemTrace.showlegend,
                     legendgroup: firstItemTrace.legendgroup,

src/components/legend/handle_click.js

@@ -32,6 +32,7 @@ module.exports = function handleClick(g, gd, numClicks) {
         [];
 
     var legendItem = g.data()[0][0];
+    if(legendItem.groupTitle && legendItem.noClick) return;
 
     var fullData = gd._fullData;
     var fullTrace = legendItem.trace;