Dear Maintainer,

scanning/loading all VST3 plugins installed ny vst3sdk-plugins, I get
two errors:

```
 46s probing '/usr/lib/vst3/dataexchange.vst3' ... couldn't load! /usr/lib/vst3/dataexchange.vst3/Contents/x86_64-linux/dataexchange.so: undefined symbol: _ZN9Steinberg3Vst19WaveformViewManager26createNanoVGViewAndContextEv
 46s probing '/usr/lib/vst3/utf16name.vst3' ... error! subprocess was terminated with signal 11 (Segmentation fault)
```

afaict, the `Steinberg::Vst::WaveformViewManager::createNanoVGViewAndContext()`
symbol required by dataexchange.vst3 is only defined for DirectX and
Metal; so it probably should just be omitted from the package.

it's a bit disturbing thought, that utf16name.vst3 apparantly segfaults.

theis all happened when running the autopktests of 'pd-vstplugin', so
the environment should be pretty clean.
Here's a link to the debusine run:
<https://debusine.debian.net/debian/developers/work-request/637897/>
(dunno when the official Debian-CI will catch up)

the issue appears on all tested platforms (amd64, arm64, armhf, i386).


dmgfasr
IOhannes