Remove unnecessary delay

[SergioGasquez]

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Submission Checklist 📝

• I have updated existing examples or added new ones (if applicable).
• I have used cargo xtask fmt-packages command to ensure that all changed code is formatted correctly.
• My changes were added to the CHANGELOG.md in the proper section.
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Pull Request Details 📖

Description

In ESP-IDF (using S3), the equivalent method is https://github.com/espressif/esp-idf/blob/5ca9f2a49aaabbfaf726da1cc3597c0edb3c4d37/components/esp_hw_support/port/esp32s3/rtc_sleep.c#L174 which is then called in https://github.com/espressif/esp-idf/blob/5ca9f2a49aaabbfaf726da1cc3597c0edb3c4d37/components/esp_hw_support/sleep_modes.c#L926.

There is no delay in the ESP-IDF source code, so I think we could delete it.

Testing

Not tested yet

[bjoernQ]

LGTM - I think originally that delay was to make it likely that the UART is fully flushed before sleeping - but the user can do that (which the examples show)

[MabezDev]

Thanks for looking into this, LGTM!

[playfulFence]

LGTM, thanks!
Just a small one, it appears in the updated examples.

[SergioGasquez]

LGTM, thanks! Just a small one, it appears in the updated examples.

Good catch! Fixed them

[playfulFence]

Thanks a lot!