removed an obsolete function

snap.html

@@ -8,7 +8,7 @@
         <script src="src/symbols.js?version=2020-06-17"></script>
         <script src="src/widgets.js?version=2020-05-06"></script>
         <script src="src/blocks.js?version=2020-06-24"></script>
-        <script src="src/threads.js?version=2020-06-24"></script>
+        <script src="src/threads.js?version=2020-06-25"></script>
         <script src="src/objects.js?version=2020-06-20"></script>
         <script src="src/gui.js?version=2020-06-24"></script>
         <script src="src/paint.js?version=2020-05-17"></script>

src/threads.js

@@ -61,7 +61,7 @@ StageMorph, SpriteMorph, StagePrompterMorph, Note, modules, isString, copy, Map,
 isNil, WatcherMorph, List, ListWatcherMorph, alert, console, TableMorph, Color,
 TableFrameMorph, ColorSlotMorph, isSnapObject, newCanvas, Symbol, SVG_Costume*/
 
-modules.threads = '2020-June-24';
+modules.threads = '2020-June-25';
 
 var ThreadManager;
 var Process;
@@ -3589,16 +3589,6 @@ Process.prototype.hyperZip = function (baseOp, a, b) {
     return baseOp(a, b);
 };
 
-Process.prototype.dimensions = function (data) {
-    var dim = [],
-        cur = data;
-    while (cur instanceof List) {
-        dim.push(cur.length());
-        cur = cur.at(1);
-    }
-    return dim;
-};
-
 Process.prototype.isMatrix = function (data) {
     return data instanceof List && data.at(1) instanceof List;
 };