fix: remove default nationality as Indian

erpnext/education/web_form/student_applicant/student_applicant.json

@@ -8,6 +8,7 @@
  "allow_print": 0,
  "amount": 0.0,
  "amount_based_on_field": 0,
+ "apply_document_permissions": 0,
  "creation": "2016-09-22 13:10:10.792735",
  "doc_type": "Student Applicant",
  "docstatus": 0,
@@ -16,7 +17,7 @@
  "is_standard": 1,
  "login_required": 1,
  "max_attachment_size": 0,
- "modified": "2020-06-11 22:53:45.875310",
+ "modified": "2020-10-07 23:13:07.814941",
  "modified_by": "Administrator",
  "module": "Education",
  "name": "student-applicant",
@@ -157,7 +158,7 @@
   },
   {
    "allow_read_on_all_link_options": 0,
-   "default": "INDIAN",
+   "default": "",
    "fieldname": "nationality",
    "fieldtype": "Data",
    "hidden": 0,