Remove obsolete Group tag

References: https://fedoraproject.org/wiki/Changes/Remove_Group_Tag

alsa-tools.spec

@@ -30,7 +30,6 @@ Release:        2%{?dist}
 # Checked at least one source file from all the sub-projects contained in
 # the source tarball and they are consistent GPLv2+ - TJ 2007-11-15
 License:        GPLv2+
-Group:          Applications/Multimedia
 URL:            http://www.alsa-project.org/
 Source:         ftp://ftp.alsa-project.org/pub/tools/%{name}-%{version}.tar.bz2
 
@@ -76,7 +75,6 @@ certain sound cards.
 
 %package firmware
 Summary:        ALSA tools for uploading firmware to some soundcards
-Group:          Applications/System
 Requires:       udev
 Requires:       alsa-firmware
 Requires:       fxload