Remove obsolete Group tag

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

lvm2.spec

@@ -59,7 +59,6 @@ Epoch: %{rhel}
 Version: 2.02.183
 Release: 1%{?dist}
 License: GPLv2
-Group: System Environment/Base
 URL: http://sourceware.org/lvm2
 #Source0: ftp://sourceware.org/pub/lvm2/releases/LVM2.%%{version}.tgz
 Source0: ftp://sourceware.org/pub/lvm2/releases/LVM2.%{version}.tgz
@@ -404,7 +403,6 @@ systemctl start lvm2-lvmpolld.socket >/dev/null 2>&1 || :
 ##############################################################################
 %package devel
 Summary: Development libraries and headers
-Group: Development/Libraries
 License: LGPLv2
 Requires: %{name} = %{?epoch}:%{version}-%{release}
 Requires: device-mapper-devel = %{?epoch}:%{device_mapper_version}-%{release}
@@ -430,7 +428,6 @@ NOTE: lvm2app is deprecated. Migration to D-Bus API provided by
 %package libs
 Summary: Shared libraries for lvm2
 License: LGPLv2
-Group: System Environment/Libraries
 Requires: device-mapper-event = %{?epoch}:%{device_mapper_version}-%{release}
 
 %description libs
@@ -466,7 +463,6 @@ This package contains shared lvm2 libraries for applications.
 %package -n python3-lvm-deprecated
 Summary: Python 3 module to access LVM (Deprecated)
 License: LGPLv2
-Group: Development/Libraries
 Provides: python3-lvm = %{?epoch}:%{version}-%{release}
 %{?python_provide:%python_provide python3-lvm}
 # For compatibility with old name:
@@ -493,7 +489,6 @@ Migration to D-Bus API provided by %{name}-dbusd is recommended.
 %if %{enable_lockd_dlm} || %{enable_lockd_sanlock}
 %package lockd
 Summary: LVM locking daemon
-Group: System Environment/Base
 Requires: lvm2 = %{?epoch}:%{version}-%{release}
 %if %{enable_lockd_sanlock}
 Requires: sanlock-lib >= %{sanlock_version}
@@ -538,7 +533,6 @@ LVM commands use lvmlockd to coordinate access to shared storage.
 %package cluster
 Summary: Cluster extensions for userland logical volume management tools
 License: GPLv2
-Group: System Environment/Base
 Requires: lvm2 = %{?epoch}:%{version}-%{release}
 Requires(preun): device-mapper >= %{?epoch}:%{device_mapper_version}
 Requires(preun): lvm2 >= 2.02
@@ -571,7 +565,6 @@ fi
 %package cluster-standalone
 Summary: Additional files to support clustered LVM2 in standalone mode
 License: GPLv2
-Group: System Environment/Base
 Requires: lvm2-cluster = %{?epoch}:%{version}-%{release}
 
 %description cluster-standalone
@@ -607,7 +600,6 @@ involvement (e.g. pacemaker).
 
 %package -n cmirror
 Summary: Daemon for device-mapper-based clustered mirrors
-Group: System Environment/Base
 Requires: corosync >= %{corosync_version}
 Requires: device-mapper = %{?epoch}:%{device_mapper_version}-%{release}
 Requires: resource-agents >= %{resource_agents_version}
@@ -626,7 +618,6 @@ Daemon providing device-mapper-based mirrors in a shared-storage cluster.
 %package -n cmirror-standalone
 Summary: Additional files to support DM based clustered mirrors in standalone mode
 License: GPLv2
-Group: System Environment/Base
 Requires: cmirror >= %{?epoch}:%{version}-%{release}
 
 %description -n cmirror-standalone
@@ -659,7 +650,6 @@ involvement (e.g. pacemaker).
 %package dbusd
 Summary: LVM2 D-Bus daemon
 License: GPLv2
-Group: System Environment/Base
 Requires: lvm2 >= %{?epoch}:%{version}-%{release}
 Requires: dbus
 Requires: python3-dbus
@@ -701,7 +691,6 @@ Daemon for access to LVM2 functionality through a D-Bus interface.
 Summary: Device mapper utility
 Version: %{device_mapper_version}
 License: GPLv2
-Group: System Environment/Base
 URL: http://sources.redhat.com/dm
 Requires: device-mapper-libs = %{?epoch}:%{device_mapper_version}-%{release}
 Requires: util-linux >= %{util_linux_version}
@@ -738,7 +727,6 @@ for the kernel device-mapper.
 Summary: Development libraries and headers for device-mapper
 Version: %{device_mapper_version}
 License: LGPLv2
-Group: Development/Libraries
 Requires: device-mapper = %{?epoch}:%{device_mapper_version}-%{release}
 Requires: pkgconfig
 
@@ -756,7 +744,6 @@ the device-mapper libraries.
 Summary: Device-mapper shared library
 Version: %{device_mapper_version}
 License: LGPLv2
-Group: System Environment/Libraries
 Requires: device-mapper = %{?epoch}:%{device_mapper_version}-%{release}
 
 %description -n device-mapper-libs
@@ -772,7 +759,6 @@ This package contains the device-mapper shared library, libdevmapper.
 
 %package -n device-mapper-event
 Summary: Device-mapper event daemon
-Group: System Environment/Base
 Version: %{device_mapper_version}
 Requires: device-mapper = %{?epoch}:%{device_mapper_version}-%{release}
 Requires: device-mapper-event-libs = %{?epoch}:%{device_mapper_version}-%{release}
@@ -809,7 +795,6 @@ fi
 Summary: Device-mapper event daemon shared library
 Version: %{device_mapper_version}
 License: LGPLv2
-Group: System Environment/Libraries
 
 %description -n device-mapper-event-libs
 This package contains the device-mapper event daemon shared library,
@@ -827,7 +812,6 @@ libdevmapper-event.
 Summary: Development libraries and headers for the device-mapper event daemon
 Version: %{device_mapper_version}
 License: LGPLv2
-Group: Development/Libraries
 Requires: device-mapper-event = %{?epoch}:%{device_mapper_version}-%{release}
 Requires: pkgconfig