[2.4.0] Checkmk Werk 16693 created: Re-enable inline SNMP for SNMPv1

[//]: # (werk v2) # Re-enable inline SNMP for SNMPv1 key | value ---------- | --- date | 2024-04-20T13:55:35+00:00 version | 2.4.0b1 class | fix edition | cre component | checks level | 1 compatible | yes Due to a memory leak in the underlying library, Checkmk was using the 'classic' SNMP backend for all SNMPv1 hosts regardless of the user configuration. This memory leak has since been fixed, so we remove the fallback.