Incorporating review comments

docs/source/whatsnew/pr/incompat-funcs-removed.rst

@@ -0,0 +1,9 b''
+Functions Removed in 6.x Development cycle
+------------------------------------------
+
+The following functions have been removed in the 
+development cycle marked for the development cycle
+marked for Milestone 6.0.
+
+* is_cmd_found
+* pycmd2argv

IPython/utils/process.py

@@ -37,12 +37,8 b' def find_cmd(cmd):'
     is a risk you will find the wrong one.  Instead find those using the
     following code and looking for the application itself::
 
-        from IPython.utils.path import get_ipython_module_path
-        from IPython.utils.process import pycmd2argv
-        argv = pycmd2argv(get_ipython_module_path('IPython.terminal.ipapp'))
-
-    Note, The code for pycmd2argv has been removed now as it was not used
-    anywhere. get_ipython_module_path should give us that same result.
+        import sys
+        argv = [sys.executable, '-m', 'IPython.terminal']
 
     Parameters
     ----------