Remove sample config line from values.yaml

[sklarsa]

If users were running the helm chart as-is, we pinned shared worker count to 2. This disables the server config by default.

[sklarsa]

On the questdb pod, for evidence:

root@questdb-0:/var/lib/questdb# cat conf/server.conf
# Comment or set to false to allow QuestDB to start even in the presence of config errors.
config.validation.strict=true

# number of worker threads shared across the application. Increasing this number will increase parallelism in the application at the expense of CPU resources
#shared.worker.count=2

# comma-delimited list of CPU ids, one per thread specified in "shared.worker.count". By default, threads have no CPU affinity
#shared.worker.affinity=
...