Remove obsolete Group tag

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

sanlock.spec

@@ -9,7 +9,6 @@ Version:        3.6.0
 Release:        7%{?dist}
 Summary:        A shared storage lock manager
 
-Group:          System Environment/Base
 License:        GPLv2 and GPLv2+ and LGPLv2+
 URL:            https://pagure.io/sanlock/
 BuildRequires:  gcc
@@ -137,7 +136,6 @@ getent passwd sanlock > /dev/null || /usr/sbin/useradd \
 
 %package        lib
 Summary:        A shared storage lock manager library
-Group:          System Environment/Libraries
 
 %description    lib
 The %{name}-lib package contains the runtime libraries for sanlock,
@@ -159,7 +157,6 @@ Provides: %{name}-python = %{version}-%{release}
 Provides: %{name}-python%{?_isa} = %{version}-%{release}
 Obsoletes: %{name}-python < %{version}-%{release}
 Summary:        Python bindings for the sanlock library
-Group:          Development/Libraries
 Requires:       %{name}-lib = %{version}-%{release}
 
 %description    -n python2-sanlock
@@ -173,7 +170,6 @@ supplied by the sanlock library.
 
 %package        devel
 Summary:        Development files for %{name}
-Group:          Development/Libraries
 Requires:       %{name}-lib = %{version}-%{release}
 
 %description    devel
@@ -195,7 +191,6 @@ developing applications that use %{name}.
 
 %package -n     sanlk-reset
 Summary:        Host reset daemon and client using sanlock
-Group:          System Environment/Base
 Requires:       sanlock = %{version}-%{release}
 Requires:       sanlock-lib = %{version}-%{release}