Update file to note the current tool for python style guidelines.
Update file to note the current tool for python style guidelines.

- Remove duplicate "Python Code Guidelines" section.

Change-Id: I53c31c76e63c4560c1d200fbee38febeff3c4014
Signed-off-by: Joy Onyerikwu <d7326db85b7656f42372a399674e38488e4d60ee@ibm.com>

openbmc/openbmc-test-automation,openbmc/openbmc-test-automation