Remove obsolete Group tag

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

libcap.spec

@@ -4,7 +4,6 @@ Release: 2%{?dist}
 Summary: Library for getting and setting POSIX.1e capabilities
 URL: https://sites.google.com/site/fullycapable/
 License: GPLv2
-Group: System Environment/Libraries
 
 Source: https://git.kernel.org/pub/scm/libs/libcap/libcap.git/snapshot/%{name}-%{version}.tar.gz
 # http://manned.org/getpcaps/299a4949/src:
@@ -19,7 +18,6 @@ draft 15 capabilities.
 
 %package static
 Summary: Static libraries for libcap development
-Group: Development/Libraries
 Requires: %{name} = %{version}-%{release}
 
 %description static
@@ -31,7 +29,6 @@ draft 15 capabilities.
 
 %package devel
 Summary: Development files for libcap
-Group: Development/Libraries
 Requires: %{name} = %{version}-%{release}
 
 %description devel