Devices: update status for vegetalte, piccolo, paella

[bernhardreiter]

https://github.com/aquaris-dev/aquaris-dev.github.io/blob/6da5659d12739a7cc91d3ee8907ffde0765ac031/devices.md

lists the following devices as supported, where the link on the official LineageOS
says, they have been discontinued:

• Aquaris E5 LTE (vegetalte)
• Aquaris M5 (piccolo)
• Aquaris X5 (paella)

[stucki]

Thanks for reporting, you are right. See #17