Removing james-bebbington as an approver (open-telemetry#2714)

@james-bebbington is currently working on something else and cannot allocate time to the Collector. 
James, thanks for you work on the Collector, you are welcome back anytime in the future.

README.md

@@ -71,7 +71,6 @@ Triagers ([@open-telemetry/collector-triagers](https://github.com/orgs/open-tele
 Approvers ([@open-telemetry/collector-approvers](https://github.com/orgs/open-telemetry/teams/collector-approvers)):
 
 - [Dmitrii Anoshin](https://github.com/dmitryax), Splunk
-- [James Bebbington](https://github.com/james-bebbington), Google
 - [Jay Camp](https://github.com/jrcamp), Splunk
 - [Juraci Paixão Kröhling](https://github.com/jpkrohling), Red Hat
 - [Nail Islamov](https://github.com/nilebox), Google