Remove obsolete Group tag

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

btrfs-progs.spec

@@ -3,7 +3,6 @@ Version:	4.19.1
 Release:	1%{?dist}
 Summary:	Userspace programs for btrfs
 
-Group:		System Environment/Base
 License:	GPLv2
 URL:		http://btrfs.wiki.kernel.org/index.php/Main_Page
 Source0:	https://www.kernel.org/pub/linux/kernel/people/kdave/%{name}/%{name}-v%{version}.tar.xz
@@ -23,7 +22,6 @@ check, modify and correct any inconsistencies in the btrfs filesystem.
 
 %package devel
 Summary:	btrfs filesystem-specific libraries and headers
-Group:		Development/Libraries
 Requires:	btrfs-progs = %{version}-%{release}
 
 %description devel