Remove unnecessary targets from BUILD file in superhello_testproject

examples/tests/python/example/python_distribution/hello/superhello_testproject/BUILD

@@ -21,39 +21,3 @@ python_binary(
     ':superhello',
   ]
 )
-
-
-# The targets below are for testing purposes only.
-# Their purpose is to expose an error that arises when a python_dist
-# contains a requirement that conflicts with the same requirement of
-# a different version in the consuming target. In this case, the pants
-# goal will fail and indicate that incomptible requirements exist.
-
-python_dist(
-  name='superhello_with_conflicting_dep',
-  sources=[
-    'super_greet.c',
-    'hello_package/hello.py',
-    'hello_package/__init__.py',
-    'setup.py'
-  ],
-  dependencies=[
-    ':pex_lib'
-  ]
-)
-
-python_binary(
-  name='main_with_conflicting_dep',
-  source='main.py',
-  dependencies=[
-    ':superhello_with_conflicting_dep',
-    '3rdparty/python:pex'
-  ]
-)
-
-python_requirement_library(
-  name='pex_lib',
-  requirements=[
-    python_requirement('pex==1.2.11'),
-  ]
-)