delete spec_prep_plus.sh file

rubygem-minitest-reporters.spec

@@ -1,7 +1,7 @@
 %global gem_name minitest-reporters
 Name:                rubygem-%{gem_name}
 Version:             1.3.8
-Release:             1
+Release:             2
 Summary:             Create customizable Minitest output formats
 License:             MIT
 URL:                 https://github.com/CapnKernul/minitest-reporters
@@ -63,5 +63,8 @@ popd
 %{gem_instdir}/test
 
 %changelog
+* Tue Sep 8 2020 yanan li <liyanan032@huawei.com> - 1.3.8-2
+- delete spec_prep_plus.sh file
+
 * Mon Aug 24 2020 liyanan <liyanan32@huawei.com> - 1.3.8-1
 - package init