Remove unicode literals from code base

jedi/api/completion.py

@@ -576,8 +576,8 @@ def _complete_getattr(user_context, instance):
     will write it like this anyway and the other ones, well they are just
     out of luck I guess :) ~dave.
     """
-    names = (instance.get_function_slot_names(u'__getattr__')
-             or instance.get_function_slot_names(u'__getattribute__'))
+    names = (instance.get_function_slot_names('__getattr__')
+             or instance.get_function_slot_names('__getattribute__'))
     functions = ValueSet.from_sets(
         name.infer()
         for name in names

jedi/api/file_name.py

@@ -7,7 +7,7 @@ from jedi.inference.helpers import get_str_or_none
 
 
 class PathName(StringName):
-    api_type = u'path'
+    api_type = 'path'
 
 
 def complete_file_name(inference_state, module_context, start_leaf, quote, string,

jedi/api/keywords.py

@@ -7,7 +7,7 @@ from pydoc_data import topics as pydoc_topics
 
 
 class KeywordName(AbstractArbitraryName):
-    api_type = u'keyword'
+    api_type = 'keyword'
 
     def py__doc__(self):
         return imitate_pydoc(self.string_name)

jedi/api/strings.py

@@ -18,7 +18,7 @@ _sentinel = object()
 
 
 class StringName(AbstractArbitraryName):
-    api_type = u'string'
+    api_type = 'string'
     is_value_name = False