Do not pull optional dependencies

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

rust-rand_pcg.spec

@@ -7,7 +7,7 @@
 
 Name:           rust-%{crate}
 Version:        0.1.2
-Release:        1%{?dist}
+Release:        2%{?dist}
 Summary:        Selected PCG random number generators
 
 # Upstream license specification: MIT/Apache-2.0
@@ -20,8 +20,6 @@ ExclusiveArch:  %{rust_arches}
 BuildRequires:  rust-packaging
 BuildRequires:  (crate(autocfg/default) >= 0.1.0 with crate(autocfg/default) < 0.2.0)
 BuildRequires:  (crate(rand_core/default) >= 0.4.0 with crate(rand_core/default) < 0.5.0)
-BuildRequires:  (crate(serde/default) >= 1.0.0 with crate(serde/default) < 2.0.0)
-BuildRequires:  (crate(serde_derive/default) >= 1.0.38 with crate(serde_derive/default) < 2.0.0)
 %if %{with check}
 BuildRequires:  (crate(bincode/default) >= 1.1.2 with crate(bincode/default) < 2.0.0)
 %endif
@@ -109,6 +107,9 @@ which use "serde_derive" feature of "%{crate}" crate.
 %endif
 
 %changelog
+* Sun Mar 10 2019 Igor Gnatenko <ignatenkobrain@fedoraproject.org> - 0.1.2-2
+- Do not pull optional dependencies
+
 * Sat Feb 23 2019 Igor Gnatenko <ignatenkobrain@fedoraproject.org> - 0.1.2-1
 - Update to 0.1.2