Remove submodules
Squashed 'ext/dsa_verify/' content from commit 712319c

git-subtree-dir: ext/dsa_verify
git-subtree-split: 712319c650c840c0af516f483cdc188019a38080
Merge commit '27947cd0740f88460159b98b1d45114ba125c207' as 'ext/dsa_verify'
Squashed 'ext/ilmpclient/' content from commit 7ba6dff

git-subtree-dir: ext/ilmpclient
git-subtree-split: 7ba6dff948354f404b21facc7d45b4a701fb0997
Merge commit 'c0ba98cd7a3c5aeebf545740e129a3e5d3f59e2a' as 'ext/ilmpclient'