fix Bug 33747

common/Drawings/Format/ChartFormat.js

@@ -6684,6 +6684,15 @@ CDLbls.prototype =
             pr.parent = this;
         }
     },
+    removeDLbl: function(nIndex)
+    {
+        History.Add(new CChangesDrawingsContent(this, AscDFH.historyitem_DLbls_SetDLbl, nIndex, this.dLbl.splice(nIndex, 1), false));
+    },
+    removeAllDLbls: function(){
+        for(var i = this.dLbl.length - 1; i > -1; --i){
+            this.removeDLbl(i);
+        }
+    },
     setDLblPos: function(pr)
     {
         History.Add(new CChangesDrawingsLong(this, AscDFH.historyitem_DLbls_SetDLblPos, this.dLblPos, pr));