Remove obsolete Group tag

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

liblouis.spec

@@ -6,7 +6,6 @@ Version:        3.8.0
 Release:        1%{?dist}
 Summary:        Braille translation and back-translation library
 
-Group:          System Environment/Libraries
 License:        LGPLv3+
 URL:            http://liblouis.org
 Source0:        https://github.com/%{name}/%{name}/releases/download/v%{version}/%{name}-%{version}.tar.gz
@@ -42,7 +41,6 @@ Linux. It has, however, gone far beyond these routines.
 
 %package        devel
 Summary:        Development files for %{name}
-Group:          Development/Libraries
 Requires:       %{name}%{?_isa} = %{version}-%{release}
 Requires:       pkgconfig
 
@@ -53,7 +51,6 @@ developing applications that use %{name}.
 
 %package        utils
 Summary:        Command-line utilities to test %{name}
-Group:          Applications/Text
 Requires:       %{name}%{?_isa} = %{version}-%{release}
 License:        GPLv3+
 
@@ -65,7 +62,6 @@ them is suitable for braille transcription.
 
 %package -n python3-louis
 Summary:        Python 3 language bindings for %{name}
-Group:          Development/Languages
 BuildArch:      noarch
 Requires:       %{name} = %{version}-%{release}
 Obsoletes:      %{name}-python3 < 2.6.2-3
@@ -78,7 +74,6 @@ This package provides Python 3 language bindings for %{name}.
 
 %package doc
 Summary:        Documentation for %{name}
-Group:          Documentation
 BuildArch:      noarch
 Requires:       %{name} = %{version}-%{release}