remove incfusever dead-code

License: MIT
Signed-off-by: Jeromy <why@ipfs.io>

core/commands/incfusever/doc.go

-// Package incfusever is only here to prevent go src tools (like godep)
-// from thinking fuseversion is not a required package. Though we do not
-// actually use github.com/jbenet/go-fuse-version as a library, we
-// _may_ need its binary. We avoid it as much as possible as compiling
-// it _requires_ fuse headers. Users must be able to install go-ipfs
-// without also installing fuse.
-package incfusever

core/commands/incfusever/incfusever.go

-// +build !nofuse
-
-package incfusever
-
-import (
-	fuseversion "github.com/ipfs/go-ipfs/Godeps/_workspace/src/github.com/jbenet/go-fuse-version"
-)
-
-var _ = fuseversion.LocalFuseSystems