defi.gemspec in defi-1.1.4 vs defi.gemspec in defi-1.1.5

@@ -14,16 +14,12 @@
   spec.files         =
     `git ls-files -z`.split("\x0").reject { |f| f.match(%r{^test/}) }
   spec.executables   = spec.files.grep(%r{^exe/}) { |f| File.basename(f) }
   spec.require_paths = ['lib']
 
-  spec.add_development_dependency 'bundler',    '~> 1.16'
+  spec.add_development_dependency 'bundler',    '~> 2.0'
   spec.add_development_dependency 'rake',       '~> 12.3'
-  spec.add_development_dependency 'rubocop',    '~> 0.58'
+  spec.add_development_dependency 'rubocop',    '~> 0.67'
   spec.add_development_dependency 'simplecov',  '~> 0.16'
   spec.add_development_dependency 'spectus',    '~> 3.0'
   spec.add_development_dependency 'yard',       '~> 0.9'
-
-  spec.cert_chain   = ['certs/gem-fixrb-public_cert.pem']
-  private_key       = File.expand_path('~/.ssh/gem-fixrb-private_key.pem')
-  spec.signing_key  = private_key if File.exist?(private_key)
 end