Remove redundant "implementation".
Remove redundant "implementation".

kanaka/raft.js,kanaka/fuzzy-raft,moquist/raft.js,kanaka/raft.js,moquist/raft.js,kanaka/fuzzy-raft,kanaka/fuzzy-raft,kanaka/fuzzy-raft,kanaka/fuzzy-raft,kanaka/raft.js,kanaka/raft.js,kanaka/raft.js,moquist/raft.js,moquist/raft.js,moquist/raft.js