fix!: Remove weird fallback to tabSingles (#36517)

This doesn't make any sense.

frappe/database/database.py

@@ -677,22 +677,6 @@ class Database:
 						or str(e).startswith("Invalid DocType")
 					):
 						out = None
-					elif (not ignore) and frappe.db.is_table_missing(e):
-						# table not found, look in singles
-						fields = (
-							[fieldname] if (isinstance(fieldname, str) and fieldname != "*") else fieldname
-						)
-						out = self.get_values_from_single(
-							fields,
-							filters,
-							doctype,
-							as_dict,
-							debug,
-							update,
-							run=run,
-							distinct=distinct,
-						)
-
 					else:
 						raise
 			else: