Do not provide private Perl modules
    
    The nagios-plugins-perl subpackage installs utils.pm into a private
    location that is not available for other Perl code without pointing
    to that location. Therefore the perl(utils) module should not be
    provided on RPM level.
    
    This patch removes the provide.
    
    Depending packages should require nagios-plugins-perl instead as is
    already implemented among nagios-plugins subpackages.