🔪 gd._testref (wasn't used anywhere)

Author: etpinard

src/components/drawing/index.js

@@ -580,7 +580,7 @@ drawing.makeTester = function(gd) {
     }
 
     drawing.tester = gd._tester = tester;
-    drawing.testref = gd._testref = testref;
+    drawing.testref = testref;
 };
 
 // use our offscreen tester to get a clientRect for an element,

src/plots/plots.js

@@ -1174,7 +1174,6 @@ plots.purge = function(gd) {
     // these get recreated on Plotly.plot anyway, but just to be safe
     // (and to have a record of them...)
     delete gd._tester;
-    delete gd._testref;
     delete gd._promises;
     delete gd._redrawTimer;
     delete gd.firstscatter;

test/jasmine/tests/plots_test.js

@@ -429,7 +429,6 @@ describe('Test Plots', function() {
             expect(gd.autoplay).toBeUndefined();
             expect(gd.changed).toBeUndefined();
             expect(gd._tester).toBeUndefined();
-            expect(gd._testref).toBeUndefined();
             expect(gd._promises).toBeUndefined();
             expect(gd._redrawTimer).toBeUndefined();
             expect(gd.firstscatter).toBeUndefined();