drop boilerplated part

Author: RustamCadoLabs

lib/umbrellio_utils/sql.rb

@@ -6,10 +6,10 @@ module SQL
 
     if defined?(::Rails) && defined?(::Sequel)
       Rails.configuration.after_initialize do
-        UniqueConstraintViolation = Sequel::UniqueConstraintViolation if defined?(::Sequel)
+        UniqueConstraintViolation = Sequel::UniqueConstraintViolation
       end
     elsif defined?(::Sequel)
-      UniqueConstraintViolation = Sequel::UniqueConstraintViolation if defined?(::Sequel)
+      UniqueConstraintViolation = Sequel::UniqueConstraintViolation
     end
 
     def [](*args)