Remove unused tickmode sync logic

Author: filipesantiagoAM

src/plots/cartesian/axes.js

@@ -2291,40 +2291,10 @@ axes.draw = function(gd, arg, opts) {
                 fullLayout._infolayer.select('.g-' + ya._id + 'title').remove();
             }
         });
-    } else if(arg && arg.length === 1) {
-        fullLayout._paper.selectAll('g.subplot').each(function(d) {
-            var id = d[0];
-            var plotinfo = fullLayout._plots[id];
-            if(plotinfo) {
-                var xa = plotinfo.xaxis;
-                var ya = plotinfo.yaxis;
-                addSyncAxis(xa, arg[0]);
-                addSyncAxis(ya, arg[0]);
-            }
-        });
-    }
-
-    function addSyncAxis(ax, idToValidate) {
-        if(ax.tickmode === 'sync' && ax.overlaying === idToValidate) {
-            arg.push(ax._id);
-        }
     }
 
     var axList = (!arg || arg === 'redraw') ? axes.listIds(gd) : arg;
 
-    // order axes that have dependency to other axes
-    axList.map(function(axId) {
-        var ax = axes.getFromId(gd, axId);
-
-        if(ax.tickmode === 'sync' && ax.overlaying) {
-            var overlayingIndex = axList.findIndex(function(axis) {return axis === ax.overlaying;});
-
-            if(overlayingIndex >= 0) {
-                axList.unshift(axList.splice(overlayingIndex, 1).shift());
-            }
-        }
-    });
-
     var fullAxList = axes.list(gd);
     // Get the list of the overlaying axis for all 'shift' axes
     var overlayingShiftedAx = fullAxList.filter(function(ax) {
@@ -2333,6 +2303,7 @@ axes.draw = function(gd, arg, opts) {
         return ax.overlaying;
     });
 
+
     var axShifts = {'false': {'left': 0, 'right': 0}};
 
     return Lib.syncOrAsync(axList.map(function(axId) {