aliases: remove phonon aliases

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pkgs/top-level/aliases.nix
··· 64 64 mupen64plus1_5 = mupen64plus; # added 2016-02-12 65 65 ncat = nmap; # added 2016-01-26 66 66 nfsUtils = nfs-utils; # added 2014-12-06 67 - phonon_qt5 = qt5.phonon; # added 2015-12-19 68 - phonon_qt5_backend_gstreamer = qt5.phonon-backend-gstreamer; # added 2015-12-19 69 67 pidginlatexSF = pidginlatex; # added 2014-11-02 70 68 poppler_qt5 = qt5.poppler; # added 2015-12-19 71 69 qca-qt5 = qt5.qca-qt5; # added 2015-12-19