binaries and soflinks created under utils/bin folder when we build lz4port

[HarithaIBM]

On cloning lz4port code from github and building it. We see new entries in utils/bin folder as shown below:
lrwxrwxrwx 1 HARITHA BASIC 3 Sep 13 01:25 unlz4 -> lz4
lrwxrwxrwx 1 HARITHA BASIC 3 Sep 13 01:25 lz4cat -> lz4
lrwxrwxrwx 1 HARITHA BASIC 3 Sep 13 01:25 lz4c -> lz4
-rwxr-xr-x 1 HARITHA BASIC 733184 Sep 13 01:25 lz4

This is not supposed to be here.