Info: Remove TypeError for improbable scenario

A TypeError was being raised if a class attribute with a default
had been set to a falsish value.  While possible, it is very
improbable, and other errors will result.

Author: jayvdb

coala_quickstart/info_extraction/Info.py

@@ -21,9 +21,6 @@ def __init__(self,
         :param extractor: ``InfoExtractor`` instance used to extract the
                           information.
         """
-        if not self.value_type:
-            self.value_type = (object,)
-
         assert_type_signature(value, self.value_type, 'value')
         self.source = source
         self._value = value