Remove obsolete Group tag

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

procps-ng.spec

@@ -6,7 +6,6 @@ Name: procps-ng
 Version: 3.3.15
 Release: 4%{?dist}
 License: GPL+ and GPLv2 and GPLv2+ and GPLv3+ and LGPLv2+
-Group: Applications/System
 URL: https://sourceforge.net/projects/procps-ng/
 
 Source0: http://downloads.sourceforge.net/%{name}/%{name}-%{version}.tar.xz
@@ -60,7 +59,6 @@ working directory of a process or processes.
 
 %package devel
 Summary:  System and process monitoring utilities
-Group:    Development/Libraries
 Requires: %{name}%{?_isa} = %{version}-%{release}
 Provides: procps-devel = %{version}-%{release}
 Obsoletes: procps-devel < 3.2.9-1
@@ -70,7 +68,6 @@ System and process monitoring utilities development headers
 
 %package i18n
 Summary:  Internationalization pack for procps-ng
-Group:    Applications/System
 Requires: %{name} = %{version}-%{release}
 BuildArch: noarch