Remove bundled zlib

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

rust-libz-sys.spec

@@ -6,7 +6,7 @@
 
 Name:           rust-%{crate}
 Version:        1.0.18
-Release:        1%{?dist}
+Release:        2%{?dist}
 Summary:        Bindings to the system libz library (also known as zlib)
 
 License:        MIT or ASL 2.0
@@ -42,6 +42,8 @@ which use %{crate} from crates.io.
 
 %prep
 %autosetup -n %{crate}-%{version} -p1
+# No bundled libs
+rm -vrf src/zlib-*/
 %cargo_prep
 
 %build
@@ -62,6 +64,9 @@ which use %{crate} from crates.io.
 %exclude %{cargo_registry}/%{crate}-%{version}/appveyor.yml
 
 %changelog
+* Sun Dec 03 2017 Igor Gnatenko <ignatenkobrain@fedoraproject.org> - 1.0.18-2
+- Remove bundled zlib
+
 * Thu Nov 16 2017 Igor Gnatenko <ignatenkobrain@fedoraproject.org> - 1.0.18-1
 - Update to 1.0.18