Bug fixing: Get patientId from Session

- Deleted pushed wrong file: biDirectionalTool.js

Packages/lesiontracker/lib/clearTools.js

@@ -1,5 +1,5 @@
 clearTools = function() {
-    var patientId = template.data.studies[0].patientId;
+    var patientId = Session.get("patientId");
     var toolTypes = ["lesion", "nonTarget"];
     var toolState = cornerstoneTools.globalImageIdSpecificToolStateManager.toolState;
     var toolStateKeys = Object.keys(toolState).slice(0);