Remove out-of-date comment from Context.request.
Remove out-of-date comment from Context.request.

ww9rivers/splunk-sdk-python,kkirsche/splunk-sdk-python,kkirsche/splunk-sdk-python,kkirsche/splunk-sdk-python,lowtalker/splunk-sdk-python,sullivanmatt/splunk-sdk-python,splunk/splunk-sdk-python,splunk/splunk-sdk-python,kkirsche/splunk-sdk-python