[2.3.0] Checkmk Werk 16560 created: Remove "Compute REST API specification" update config action

[//]: # (werk v2) # Remove "Compute REST API specification" update config action key | value ---------- | --- date | 2024-03-11T07:12:14+00:00 version | 2.3.0b2 class | fix edition | cre component | core level | 1 compatible | yes As of werk #16501 the computation is executed during start, restart and reload of the site apache in the background. With this mechanism the execution during `cmk-update-config` is not needed anymore.