remove mention of Python for now, since Amazon removed the binaries

nodejs10.x no longer has these binaries unfortunately :( they remain pretty clueless
as to how to provide a nice platform that works for everyone...

Author: tj

docs/04-configuration.md

@@ -521,7 +521,6 @@ The following settings are available:
 - `command` – Command run through the shell to start your server (Default `./server`)
   - When `package.json` is detected `npm start` is used
   - When `app.js` is detected `node app.js` is used
-  - When `app.py` is detected `python app.py` is used
 - `timeout` – Timeout in seconds per request (Default `15`, Max `25`)
 - `listen_timeout` – Timeout in seconds Up will wait for your app to boot and listen on `PORT` (Default `15`, Max `25`)
 

docs/05-runtimes.md

@@ -29,20 +29,6 @@ The server run by the proxy becomes:
 $ npm start
 ```
 
-## Python
-
-When requirements.txt is present the build command becomes:
-
-```
-$ mkdir -p .pypath/ && pip install -r requirements.txt -t .pypath/
-```
-
-The server run by the proxy becomes:
-
-```
-$ python app.py
-```
-
 ## Golang
 
 When a `main.go` file is detected, Golang is the assumed runtime.