Clean out the obsolete copy of marisa-trie. am: 401b906548 am: 6ea3272223

Original change: https://googleplex-android-review.googlesource.com/c/platform/external/marisa-trie/+/12180731

Change-Id: I8bad16a3aebeca9d1acb5638e89090fd681ea5b8
tree: 4b825dc642cb6eb9a060e54bf8d69288fbee4904

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