Update README.md

README.md

@@ -15,7 +15,6 @@ Just copy the source [folder](https://github.com/gabime/spdlog/tree/master/inclu
 * Headers only.
 * No dependencies - just copy and use.
 * Feature rich [call style](#usage-example) using the excellent [fmt](https://github.com/fmtlib/fmt) library.
-* ostream call style is supported too.
 * Extremely fast asynchronous mode (optional) - using lockfree queues and other tricks to reach millions of calls/sec.
 * [Custom](https://github.com/gabime/spdlog/wiki/3.-Custom-formatting) formatting.
 * Multi/Single threaded loggers.