Make stream class MCU and OS agnostic

Author: h2zero

examples/STREAM_EXAMPLES.md

@@ -110,8 +110,6 @@ Both server and client support configuration before calling `begin()`:
 ```cpp
 bleStream.setTxBufSize(2048);       // TX buffer size
 bleStream.setRxBufSize(2048);       // RX buffer size
-bleStream.setTxTaskStackSize(4096); // Task stack size
-bleStream.setTxTaskPriority(1);     // Task priority
 ```
 
 ## Compatibility