simplify, only add rails as dependency

Author: dorianmariecom

solid_errors.gemspec

@@ -20,14 +20,5 @@ Gem::Specification.new do |spec|
     Dir["{app,config,db,lib}/**/*", "MIT-LICENSE", "Rakefile", "README.md"]
   end
 
-  ">= 7".tap do |rails_version|
-    spec.add_dependency "actionmailer", rails_version
-    spec.add_dependency "actionpack", rails_version
-    spec.add_dependency "actionview", rails_version
-    spec.add_dependency "activerecord", rails_version
-    spec.add_dependency "activesupport", rails_version
-    spec.add_dependency "railties", rails_version
-  end
-
-  spec.add_development_dependency "sqlite3"
+  spec.add_dependency "rails"
 end