Drop ncompress BuildRequires for EPEL 10

It's only used for one test, which is skipped if ncompress isn't
available.  ncompress isn't packaged in EL10 or EPEL10, and it's not worth
packaging solely to test that we can successfully use it.

xdelta.spec

@@ -1,7 +1,7 @@
 Summary: A binary file delta generator
 Name: xdelta
 Version: 3.1.0
-Release: 21%{?dist}
+Release: 22%{?dist}
 # Automatically converted from old format: ASL 2.0 - review is highly recommended.
 License: Apache-2.0
 # the latest release tarball is only in the pre-relicensing GPL repo
@@ -11,7 +11,6 @@ URL: https://github.com/jmacd/xdelta
 # for testsuite
 BuildRequires: make
 BuildRequires:  gcc, gcc-c++
-BuildRequires: ncompress
 BuildRequires: xz-devel
 
 # Man page day fixes
@@ -58,7 +57,10 @@ popd
 %{_mandir}/man1/xdelta*
 
 %changelog
-* Tue Jul 02 2024 Benjamin Gilbert <bgilbert@backtick.net> - 3.1.0-21
+* Tue Nov 26 2024 Benjamin Gilbert <bgilbert@backtick.net> - 3.1.0-22
+- Drop ncompress BuildRequires for EPEL 10
+
+* Tue Jul 30 2024 Benjamin Gilbert <bgilbert@backtick.net> - 3.1.0-21
 - Fix dead project URL (rhbz#2294794)
 - Update Source0 URL