remove depreciated method for accessing Airnote data

README.md

@@ -3,7 +3,6 @@ Notecard and Notehub application samples.
 ## Content Overview
 |Folder|Application Description|
 |------|-----------------------|
-|[python-airnote-data-migration](python-airnote-data-migration)|Python implementation of downloading air quality measurement data from Airnote project on Notehub|
 |[python-dfu](python-dfu)|Enable over-the-air updates of Python files executing on a host MCU via Notecard. OTA content packaged in TAR-file. Supports Python and Micropython.
 |[python-large-file-upload](python-large-file-upload)|Upload chunks of a file using Notecard web requests from a Python script.
 |[python-remote-commands-attn-rpi](python-remote-commands-attn-rpi)|Example Raspberry Pi application in Python that enables users to send "commands" to Raspberry Pi from Notehub.  Uses the ATTN Pin on Notecard to notify the Raspberry Pi a message is available to be read|