logger.gemspec in logger-1.5.2 vs logger.gemspec in logger-1.5.3

@@ -21,7 +21,6 @@
   spec.required_ruby_version = ">= 2.3.0"
 
   spec.add_development_dependency "bundler", ">= 0"
   spec.add_development_dependency "rake", ">= 12.3.3"
   spec.add_development_dependency "test-unit"
-  spec.add_development_dependency "rdoc"
 end