Drop duplicate 'static-libs' USE description

[Coacher]

I hope you guys don't mind. Just did a quick grep.

[gentoo-repo-qa-bot]

Pull Request assignment

Areas affected: ebuilds
Packages affected: net-libs/shairplay, net-misc/stargazer

net-libs/shairplay: @candrews
net-misc/stargazer: @SpiderX, @gentoo/proxy-maint

Bugs linked: 594242

In order to force reassignment and/or bug reference scan, please append [please reassign] to the pull request title.

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[gentoo-repo-qa-bot]

Pull request CI report

Report generated at: 2018-05-04 14:45 UTC
Newest commit scanned: eef7e91
Status: ✅ good

Issues already there before the PR (double-check them):
https://qa-reports.gentoo.org/output/gentoo-ci/091acdc98/output.html#global

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Gentoo Mirror & CI services are provided by Michał Górny. The hardware was kindly provided by Todd Goodman. This unofficial service is not associated with Gentoo Infrastructure or Gentoo Foundation.

This service is provided by the service provider "as is" and any express or implied warranties, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose are disclaimed. In no event shall the service provider be liable for any direct, indirect, incidental, special, exemplary, or consequential damages (including, but not limited to, procurement of substitute goods or services; loss of use, data, or profits; or business interruption) however caused and on any theory of liability, whether in contract, strict liability, or tort (including negligence or otherwise) arising in any way out of the use of this service, even if advised of the possibility of such damage.

[Coacher]

Thank you, @flappyports.