Examples/optimization

[tore-espressif]

ESP-BSP Pull Request checklist

• CI passing

Change description

1. Fix format warnings and remove -Wno-format compile flag
2. Remove few examples

We want to remove few rudimentary examples to offload the maintainers, so they can focus in improving existing examples

Closes #50

[espzav]

As I said before, I think that the example display_rotation can still be helpful for customers. I would like to add the example with rotation by the accelerometer, but we haven't got it in our boards now. Other LGTM.

[CLAassistant]

All committers have signed the CLA.

[tore-espressif]

As I said before, I think that the example display_rotation can still be helpful for customers. I would like to add the example with rotation by the accelerometer, but we haven't got it in our boards now. Other LGTM.

Thank you for the review @espzav . Display_rotation example restored!

[espzav]

LGTM

[igrr]

@tore-espressif could you please update README.md as well? https://github.com/espressif/esp-bsp#examples still lists the examples which have been removed.

[tore-espressif]

@igrr yes, the upload workflow is failing too. It seems that i was too hasty with merging 🤦