person_entity: grantDelete -> added comment

(cherry picked from commit 2a4565c1)

entity/Person_entity/grantDeleteProcess.js

@@ -5,7 +5,8 @@ import("Document_lib");
 import("system.vars");
 import("system.result");
 
-// TODO: Commented because of performance problems: in Filter view this Process is called for every row. Waiting for bugfix
+// TODO: #1 Commented because of performance problems: in Filter view this Process is called for every row. Waiting for bugfix
+// TODO: #2 add request for the use-case: Is the person contact an employee? -> no grant to delte!
 //result.string(!DocumentUtil.hasDocuments("CONTACT", null, vars.get("$field.CONTACTID"))
 //    && !TaskUtils.hasTasks(vars.get("$field.CONTACTID"), ContextUtils.getCurrentContextId())
 //    && !ActivityUtils.hasActivities(vars.get("$field.CONTACTID"), ContextUtils.getCurrentContextId()));
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