Remove Import.alias_name_part, it was simply an alias for another lookup.

jedi/api/helpers.py

@@ -29,7 +29,7 @@ def get_on_import_stmt(evaluator, user_context, user_stmt, is_like_search=False)
     kill_count = -1
     cur_name_part = None
     for name in import_names:
-        if user_stmt.alias_name_part == name:
+        if user_stmt.alias == name:
             continue
 
         if name.end_pos >= user_context.position:

jedi/evaluate/__init__.py

@@ -320,11 +320,11 @@ class Evaluator(object):
     def goto(self, stmt, call_path):
         if isinstance(stmt, pr.Import):
             # Nowhere to goto for aliases
-            if stmt.alias_name_part == call_path[0]:
+            if stmt.alias == call_path[0]:
                 return [call_path[0]]
 
             names = stmt.get_all_import_names()
-            if stmt.alias_name_part:
+            if stmt.alias:
                 names = names[:-1]
             # Filter names that are after our Name
             removed_names = len(names) - names.index(call_path[0]) - 1

jedi/parser/representation.py

@@ -861,14 +861,6 @@ class Import(Simple):
             n.append(self.alias)
         return n
 
-    @property
-    def alias_name_part(self):
-        """
-        TODO refactor and dont use this method, because NamePart will not exist in
-          the future.
-        """
-        return self.alias
-
     def is_nested(self):
         """
         This checks for the special case of nested imports, without aliases and