Remove Pry dependencies (#207)

Recent IRB is enough convenient without Pry.

Author: kou

pycall.gemspec

@@ -36,7 +36,5 @@ Gem::Specification.new do |spec|
   spec.add_development_dependency "rake-compiler-dock"
   spec.add_development_dependency "rspec"
   spec.add_development_dependency "launchy"
-  spec.add_development_dependency "pry"
-  spec.add_development_dependency "pry-byebug"
   spec.add_development_dependency "test-unit"
 end