Implemented API call to delete application and menu

@Karthikeyan-V  Set<MenuRoleAssoc> menuRoleAssocSet = new HashSet<MenuRoleAssoc>(); 
+		menuRoleAssocSet = menuRepository.findMenuRoleAssocEntry(roleId, menuUid);

== 
it  can be, Set<MenuRoleAssoc> menuRoleAssocSet = menuRepository.findMenuRoleAssocEntry(roleId, menuUid);