Remove unused fsUtils.split()

spec/stdlib/fs-utils-spec.coffee

@@ -31,11 +31,6 @@ describe "fsUtils", ->
       expect(fsUtils.exists("")).toBe false
       expect(fsUtils.exists(null)).toBe false
 
-  describe ".split(path)", ->
-    it "returns path components", ->
-      expect(fsUtils.split("/a/b/c.txt")).toEqual ["", "a", "b", "c.txt"]
-      expect(fsUtils.split("a/b/c.txt")).toEqual ["a", "b", "c.txt"]
-
   describe ".makeTree(path)", ->
     beforeEach ->
       fsUtils.remove("/tmp/a") if fsUtils.exists("/tmp/a")

src/stdlib/fs-utils.coffee

@@ -110,15 +110,6 @@ module.exports =
   read: (path) ->
     String fs.readFileSync(path)
 
-  # Returns an array of path components. If the path is absolute, the first
-  # component will be an indicator of the root of the file system; for file
-  # systems with drives (such as Windows), this is the drive identifier with a
-  # colon, like "c:"; on Unix, this is an empty string "". The intent is that
-  # calling "join.apply" with the result of "split" as arguments will
-  # reconstruct the path.
-  split: (path) ->
-    path.split("/")
-
   # Open, write, flush, and close a file, writing the given content.
   writeSync: (path, content) ->
     mkdirp.sync(Path.dirname(path))