This change better reflects the requirement on plugins to be signed, and removes ambiguity regarding whether unsigned plugins will be completely prohibited from working.
docs: remove confusing singlestat reference
The removed phrase was confusing, why would I want to learn more about a removed component? Then given the link ends up going to the stat visualization page which replaced singlestatm and I can't find any dedicated page anymore on any version of our docs, it seems a redundant link.