Merge pull request #22808 from y-yagi/do_not_clear_all_reporters

delete only unnecessary reporter

railties/lib/rails/test_unit/minitest_plugin.rb

@@ -80,7 +80,8 @@ def self.plugin_rails_init(options)
       Minitest.backtrace_filter = ::Rails.backtrace_cleaner if ::Rails.respond_to?(:backtrace_cleaner)
     end
 
-    self.reporter.reporters.clear # Replace progress reporter for colors.
+    # Replace progress reporter for colors.
+    self.reporter.reporters.delete_if { |reporter| reporter.kind_of?(SummaryReporter) || reporter.kind_of?(ProgressReporter) }
     self.reporter << SuppressedSummaryReporter.new(options[:io], options)
     self.reporter << ::Rails::TestUnitReporter.new(options[:io], options)
   end