remove informal notes from importing example

examples/notebooks/Importing Notebooks.ipynb

@@ -24,15 +24,9 b''
       "This is made difficult by the fact that Notebooks are not plain Python files,\n",
       "and thus cannot be imported by the regular Python machinery.\n",
       "\n",
-      "There is a flag in the notebook server that provides a certain workaround for a small set of cases,\n",
-      "but I think it's gross so I won't even discuss it.\n",
-      "\n",
       "Fortunately, Python provides some fairly sophisticated [hooks](http://www.python.org/dev/peps/pep-0302/) into the import machinery,\n",
       "so we can actually make IPython notebooks importable without much difficulty,\n",
-      "and only using public APIs.\n",
-      "\n",
-      "Forgive me if some of this is gross or wrong,\n",
-      "I haven't really written import hooks before."
+      "and only using public APIs."
      ]
     },
     {