Remove obsolete Group tag

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

speex.spec

@@ -3,7 +3,6 @@ Name:		speex
 Version:	1.2.0
 Release:	2%{?dist}
 License:	BSD
-Group:		System Environment/Libraries
 URL:		https://www.speex.org/
 Source0:	https://downloads.xiph.org/releases/speex/%{name}-%{version}.tar.gz
 BuildRequires:	gcc
@@ -19,7 +18,6 @@ data (e.g. voice mail).
 
 %package devel
 Summary: 	Development package for %{name}
-Group: 		Development/Libraries
 Requires: 	%{name}%{?_isa} = %{version}-%{release}
 
 %description devel
@@ -28,7 +26,6 @@ speech. This package contains development files for %{name}
 
 %package tools
 Summary:	The tools package for %{name}
-Group:		Applications/Multimedia
 Requires:	%{name}%{?_isa} = %{version}-%{release}
 
 %description tools