Merge pull request #7236 from plotly/drop-autotick

Drop deprecated `autotick` attributes from cartesian and gl3d axes

Author: archmoj

draftlogs/7236_remove.md

@@ -0,0 +1 @@
+ - Drop deprecated autotick attributes from cartesian and gl3d axes [[#7236](https://github.com/plotly/plotly.js/pull/7236)]

src/plot_api/helpers.js

@@ -81,15 +81,6 @@ exports.cleanLayout = function(layout) {
 
             // prune empty domain arrays made before the new nestedProperty
             if(emptyContainer(ax, 'domain')) delete ax.domain;
-
-            // autotick -> tickmode
-            if(ax.autotick !== undefined) {
-                if(ax.tickmode === undefined) {
-                    ax.tickmode = ax.autotick ? 'auto' : 'linear';
-                }
-                delete ax.autotick;
-            }
-
         }
     }