Revert "Merge branch 'master' of github.com:t-inamura/SIGVerse_test"

This reverts commit d542ea2e38e772fd65ebb37b297c95750a6b0eed, reversing
changes made to af333faffff7556168544e3cdb2eebe047f4acd6.
Revert "Leap Motion module for sigverse"

This reverts commit af333faffff7556168544e3cdb2eebe047f4acd6.