Remove the nix downgrade.

coreos-installer-fix-metadata.diff

@@ -1,11 +0,0 @@
---- coreos-installer-0.1.2/Cargo.toml   2020-01-08 22:55:19.298821860 +0000
-+++ coreos-installer-0.1.2/Cargo.toml   2020-01-08 22:55:49.284017698 +0000
-@@ -49,7 +49,7 @@ default-features = false
- version = "^1.0.13"
- 
- [dependencies.nix]
--version = "^0.16.1"
-+version = "^0.15.0"
- 
- [dependencies.progress-streams]
- version = "^1.1.0"

rust-coreos-installer.spec

@@ -6,16 +6,13 @@
 
 Name:           rust-%{crate}
 Version:        0.1.2
-Release:        1%{?dist}
+Release:        2%{?dist}
 Summary:        Installer for Fedora CoreOS and RHEL CoreOS
 
 # Upstream license specification: Apache-2.0
 License:        ASL 2.0
 URL:            https://crates.io/crates/coreos-installer
 Source:         %{crates_source}
-# Initial patched metadata
-# - Downgrade nix to 0.15.0 in Cargo manifest
-Patch0:         coreos-installer-fix-metadata.diff
 
 ExclusiveArch:  %{rust_arches}
 
@@ -85,6 +82,9 @@ Systemd service files for %{crate}
 %endif
 
 %changelog
+* Thu Jan 09 2020 Josh Stone <jistone@redhat.com> - 0.1.2-2
+- Remove the nix downgrade.
+
 * Wed Jan 08 2020 Dusty Mabe <dusty@dustymabe.com> - 0.1.2-1
 - Bump to new upstream release 0.1.2
     - Release notes: https://github.com/coreos/coreos-installer/releases/tag/v0.1.2