Remove obsolete Group tag

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

perl-Devel-Cover.spec

@@ -2,7 +2,6 @@ Name:           perl-Devel-Cover
 Version:        1.31
 Release:        1%{?dist}
 Summary:        Code coverage metrics for Perl
-Group:          Development/Libraries
 License:        GPL+ or Artistic
 URL:            https://metacpan.org/release/Devel-Cover
 Source0:        https://cpan.metacpan.org/authors/id/P/PJ/PJCJ/Devel-Cover-%{version}.tar.gz