Remove BuildRoot definition

None of currently supported distributions need that.
It was needed last for EL5 which is EOL now

Signed-off-by: Igor Gnatenko <ignatenkobrain@fedoraproject.org>

perl-FileHandle-Fmode.spec

@@ -6,7 +6,6 @@ License:        GPL+ or Artistic
 Group:          Development/Libraries
 URL:            http://search.cpan.org/dist/FileHandle-Fmode/
 Source0:        http://www.cpan.org/modules/by-module/FileHandle/FileHandle-Fmode-%{version}.tar.gz
-BuildRoot:      %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
 Requires:       perl(:MODULE_COMPAT_%(eval "`%{__perl} -V:version`"; echo $version))
 BuildRequires:  coreutils
 BuildRequires:  dos2unix