Delete submodules
Squashed 'lib/python/ply/' content from commit 6513f35

git-subtree-dir: lib/python/ply
git-subtree-split: 6513f3537d80f483ec9c7e36d52e87f107a57f23
Merge commit 'ff6bbeb3d8b06c1528ea5bae02732d519584c21e' as 'lib/python/ply'
Squashed 'lib/python/cidl/' content from commit 43f0204

git-subtree-dir: lib/python/cidl
git-subtree-split: 43f020439972dfe4854b5cc8943af404fe5a9926
Merge commit '4ba1156146f355e8d521eeadb849e8d3276a20ad' as 'lib/python/cidl'
Squashed 'lib/subhook/' content from commit df95b92

git-subtree-dir: lib/subhook
git-subtree-split: df95b921b9488ffbe24a1ab4f56825275e09077f
Merge commit '3b35fcba6fee447204b27af462a30903dd89f19f' as 'lib/subhook'
Squashed 'lib/sdk/' content from commit 15ffdfc

git-subtree-dir: lib/sdk
git-subtree-split: 15ffdfcb1faad2c77e57a64ccdd8147a9a7b92f5
Merge commit '1d0d04214e18d270a7dd0257f78b40bb57d7df1b' as 'lib/sdk'