Remove BuildRequires line for libunwind-devel

The buildroot no longer has libunwind-devel, and the testsuite is
disabled.  Remove the corresponding BuildRequires line.

Resolves: rhbz#1984766

nvml.spec

@@ -29,7 +29,7 @@
 
 Name:		nvml
 Version:	1.10
-Release:	6%{?dist}
+Release:	7%{?dist}
 Summary:	Persistent Memory Development Kit (formerly NVML)
 License:	BSD
 URL:		http://pmem.io/pmdk
@@ -68,7 +68,6 @@ BuildRequires:	libfabric-devel >= %{min_libfabric_ver}
 # for tests
 BuildRequires:	gdb
 BuildRequires:	bc
-BuildRequires:	libunwind-devel
 #BuildRequires:	valgrind
 
 # Debug variants of the libraries should be filtered out of the provides.
@@ -683,6 +682,10 @@ mkdir -p %{buildroot}%{_mandir}
 
 
 %changelog
+* Fri Jul 30 2021 Bryan Gurney <bgurney@redhat.com> - 1.10.7-el9
+- Remove BuildRequires line for libunwind.devel
+- Resolves: rhbz#1984766
+
 * Wed Jun 16 2021 Jeff Moyer <jmoyer@redhat.com> - 1.10-6.el9
 - Build man pages outside of the rpm.
 - Resolves: rhbz#1943530