Remove parametric testing machinery

IPython/testing/decorators.py

@@ -16,10 +16,6 b' Included decorators:'
 
 Lightweight testing that remains unittest-compatible.
 
-- @parametric, for parametric test support that is vastly easier to use than
-  nose's for debugging. With ours, if a test fails, the stack under inspection
-  is that of the test and not that of the test framework.
-
 - An @as_unittest decorator can be used to tag any normal parameter-less
   function as a unittest TestCase.  Then, both nose and normal unittest will
   recognize it as such.  This will make it easier to migrate away from Nose if
@@ -58,12 +54,6 b' import unittest'
 # This is Michele Simionato's decorator module, kept verbatim.
 from IPython.external.decorator import decorator
 
-# We already have python3-compliant code for parametric tests
-if sys.version[0]=='2':
-    from _paramtestpy2 import parametric
-else:
-    from _paramtestpy3 import parametric
-
 # Expose the unittest-driven decorators
 from ipunittest import ipdoctest, ipdocstring
 

IPython/testing/ipunittest.py

@@ -41,12 +41,6 b' import sys'
 import unittest
 from doctest import DocTestFinder, DocTestRunner, TestResults
 
-# We already have python3-compliant code for parametric tests
-if sys.version[0]=='2':
-    from ._paramtestpy2 import ParametricTestCase
-else:
-    from ._paramtestpy3 import ParametricTestCase
-
 #-----------------------------------------------------------------------------
 # Classes and functions
 #-----------------------------------------------------------------------------