This removes ruma-serde's dependency on dtoa. Removing deserialization support could be done later, but would actually make the code more complex, so is left out for now.
git-subtree-dir: ruma-serde git-subtree-mainline: ec8f70f42a5a3e44e082de21b153d5ff2bece72d git-subtree-split: 851ffea6d20bef1c66f1c8e0ceb4d4a00c9804fc