remove unneeded lib function

Author: emilykl

src/lib/index.js

@@ -618,10 +618,6 @@ lib.tagSelected = function (calcTrace, trace, ptNumber2cdIndex) {
     }
 };
 
-lib.selIndices2selPoints = function (trace) {
-    return trace.selectedpoints;
-};
-
 /** Returns target as set by 'target' transform attribute
  *
  * @param {object} trace : full trace object

src/traces/scattergl/plot.js

@@ -277,7 +277,7 @@ var exports = module.exports = function plot(gd, subplot, cdata) {
 
             // regenerate scene batch, if traces number changed during selection
             if(trace.selectedpoints) {
-                var selPts = scene.selectBatch[index] = Lib.selIndices2selPoints(trace);
+                var selPts = scene.selectBatch[index] = trace.selectedpoints;
 
                 var selDict = {};
                 for(j = 0; j < selPts.length; j++) {