Undo the tensorflow speedups, because they seem to cause more harm than good, see #1116

jedi/evaluate/__init__.py

@@ -115,9 +115,6 @@ class Evaluator(object):
         self.is_analysis = False
         self.project = project
         self.access_cache = {}
-        # This setting is only temporary to limit the work we have to do with
-        # tensorflow and others.
-        self.infer_enabled = True
 
         self.reset_recursion_limitations()
         self.allow_different_encoding = True
@@ -165,9 +162,6 @@ class Evaluator(object):
         return self.project._get_sys_path(self, environment=self.environment, **kwargs)
 
     def eval_element(self, context, element):
-        if not self.infer_enabled:
-            return NO_CONTEXTS
-
         if isinstance(context, CompForContext):
             return eval_node(context, element)