iOS/Android: Drop aqt desktop sdk workarounds

[hoffie]

After merge of #2891, we should be able to drop the iOS/Android workarounds which install the desktop SDKs. According to the release notes this should work out of the box now.

[pljones]

Is there anyone to pick this up? If not I'll drop the milestone.

[ann0see]

It sounds like a quick fix, but not sure.

[pljones]

@jamulussoftware/maindevelopers Is anyone available who knows this part of the build system?

Uh.... is this build system or code?

[ann0see]

Build system I suppose - but I didn't succeed

[pljones]

Dropping until it's picked up.