This is a bit of a pain - why, even without placing a component on the GH canvas, does Shapediver feel like it needs to be included in EVERY GH I work on:
We just released version 1.27 of the ShapeDiver plugin, which fixes the document payload issue. Please update the plugin to this version; you should be able to open your old definitions and, once saved again using the last version, the dependency will be removed from them. The issue will also never happen again in future definitions.