luna-init: Don't install /usr/share/fonts/fonts.tgz

:Release Notes:
The CMakeLists.txt unintentionally installs this tarball!! The quick
fix, which is what this commit implements, is to have do_install()
remove it.

:Detailed Notes:
The proper way is to fix CMakeLists.txt.

:Testing Performed:
Confirmed that fonts.tgz is not in the package.

:QA Notes:

:Issues Addressed:
[GF-10152] luna-init: Don't install /usr/share/fonts/fonts.tgz
[GF-10155] CCC: luna-init=r9

Open-webOS-DCO-1.0-Signed-off-by: Herb Kuta <herb.kuta@lge.com>
Change-Id: Ia4afddc9d9ee65902da46e098d7f0015b7dd4bf4
Reviewed-on: https://g2g.palm.com/2887
Reviewed-by: Build Verification
Reviewed-by: Susan Montooth <susan.montooth@lge.com>
Tested-by: Susan Montooth <susan.montooth@lge.com>