[3.10] Docs: remove redundant "adverb-adjective" hyphens from compound modifiers (GH-94551) (GH-94558)

Discussion: https://discuss.python.org/t/slight-grammar-fix-throughout-adverbs-dont-need-hyphen/17021
(cherry picked from commit 3440d197a55800ecceea3e115e44b4262411359c)

Co-authored-by: Ned Batchelder <ned@nedbatchelder.com>