Update documents for makes_use_of now auto-calculated

Author: gaffney2010

docs/tutorials/advanced/classification_of_strategies.rst

@@ -12,7 +12,6 @@ Here is the :code:`classifier` for the :code:`Cooperator` strategy::
     >>> import axelrod as axl
     >>> expected_dictionary = {
     ...    'manipulates_state': False,
-    ...    'makes_use_of': set([]),
     ...    'long_run_time': False,
     ...    'stochastic': False,
     ...    'manipulates_source': False,

docs/tutorials/contributing/strategy/classifying_the_new_strategy.rst

@@ -15,7 +15,6 @@ Let us take a look at the dimensions available by looking at :code:`TitForTat`::
     ...    print(key)
     inspects_source
     long_run_time
-    makes_use_of
     manipulates_source
     manipulates_state
     memory_depth