Remove unneeded iostream include

Summary:
Including `iostream` in a header causes anything that uses this header to gain
an extra static initializer for an `std::ios_base::Init` object.
If there are N translation units in a library that use the header, that's N
more static initializers that need to run.

Reviewed By: yfeldblum

Differential Revision: D4191798

fbshipit-source-id: 65b47401b9177177999cff65a47ac8dffa0e0546

diff --git a/folly/experimental/LockFreeRingBuffer.h b/folly/experimental/LockFreeRingBuffer.h
index d117926a7c91f3be99f107519e2c29918764ef66..a5c71a449e0ce928c453cbeb02f9e1209cf87e41 100644 (file)
--- a/folly/experimental/LockFreeRingBuffer.h
+++ b/folly/experimental/LockFreeRingBuffer.h
@@ -18,7 +18,6 @@
 
 #include <atomic>
 #include <boost/noncopyable.hpp>
-#include <iostream>
 #include <cmath>
 #include <memory>
 #include <string.h>