Remove spellchecker.

Is there a way to remove the interference of spellchecker/grammar interruption from Message facility?

LT has no spellchecker. It must be part of your browser.

Funny, I noticed this for the first time this morning (but in Private Messages within a work, not in Talk). I'm using MS Edge at the moment, wonder if that's it as I usually use Chrome and hadn't noticed it until today.

ETA mine was actually a grammar tool rather than a spellcheck, but thinking it's related.