refactor: code rollback

Author: pekopekopekopayo

lib/ld-eventsource/client.rb

@@ -345,10 +345,7 @@ def read_stream(cxn)
               raise Errors::ReadTimeoutError.new(@read_timeout)
             end
 
-            if data.nil?
-              close
-              break
-            end
+            break if data.nil?
 
             gen.yield data
           end