Remove table of nightly build links from readme

During the early phase of development, the download links for the nightly build were only available from the table in the project readme.

Since that time, download links were also added to the "Software" page on arduino.cc, which is already linked to from
the readme. This means the nightly build link table is superfluous and only harms the readability of the readme.

The superfluous table is hereby removed from the readme.

Author: per1234

Diff for: README.md

@@ -14,32 +14,7 @@ The Arduino IDE 2.x is a major rewrite, sharing no code with the IDE 1.x. It is
 
 ## Download
 
-You can download the latest version from the [software download page on the Arduino website](https://www.arduino.cc/en/software#experimental-software).
-
-### Nightly builds
-
-These builds are generated every day at 03:00 GMT from the `main` branch and
-should be considered unstable:
-
-| Platform  | 32 bit                   | 64 bit                                                                                                 |
-| --------- | ------------------------ | ------------------------------------------------------------------------------------------------------ |
-| Linux     |                          | [Nightly Linux AppImage 64 bit]<br />[Nightly Linux ZIP file 64 bit]                                   |
-| Linux ARM | [🚧 Work in progress...] | [🚧 Work in progress...]                                                                               |
-| Windows   |                          | [Nightly Windows 64 bit installer]<br />[Nightly Windows 64 bit MSI]<br />[Nightly Windows 64 bit ZIP] |
-| macOS     |                          | [Nightly macOS 64 bit]                                                                                 |
-
-[🚧 work in progress...]: https://github.com/arduino/arduino-ide/issues/107
-[nightly linux appimage 64 bit]: https://downloads.arduino.cc/arduino-ide/nightly/arduino-ide_nightly-latest_Linux_64bit.AppImage
-[nightly linux zip file 64 bit]: https://downloads.arduino.cc/arduino-ide/nightly/arduino-ide_nightly-latest_Linux_64bit.zip
-[nightly windows 64 bit installer]: https://downloads.arduino.cc/arduino-ide/nightly/arduino-ide_nightly-latest_Windows_64bit.exe
-[nightly windows 64 bit msi]: https://downloads.arduino.cc/arduino-ide/nightly/arduino-ide_nightly-latest_Windows_64bit.msi
-[nightly windows 64 bit zip]: https://downloads.arduino.cc/arduino-ide/nightly/arduino-ide_nightly-latest_Windows_64bit.zip
-[nightly macos 64 bit]: https://downloads.arduino.cc/arduino-ide/nightly/arduino-ide_nightly-latest_macOS_64bit.dmg
-
-> These links return an HTTP `302: Found` response, redirecting to latest
-> generated builds by replacing `latest` with the latest available build
-> date, using the format YYYYMMDD (i.e for 2019/Aug/06 `latest` is
-> replaced with `20190806`)
+You can download the latest release version and nightly builds from the [software download page on the Arduino website](https://www.arduino.cc/en/software#experimental-software).
 
 ## Support