chore: remove rendundant xTaskCreate (#1264)
## Summary
Ref discussion:
https://github.com/crosspoint-reader/crosspoint-reader/pull/1222#discussion_r2865402110
Important note that this is a bug-for-bug fix. In reality, this branch
`WiFi.status() == WL_CONNECTED` is pretty much a dead code because the
entry point of these 2 activities don't use wifi.
It is better to refactor the management of network though, but it's
better to be a dedicated PR.
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