Drop test for importing fakemodule

IPython/core/tests/test_imports.py

@@ -9,9 +9,6 b' def test_import_crashhandler():'
 def test_import_debugger():
     from IPython.core import debugger
 
-def test_import_fakemodule():
-    from IPython.core import fakemodule
-
 def test_import_excolors():
     from IPython.core import excolors