UI: Remove redundant log message

This log message is already used in the StreamingStop callback.

obs/window-basic-main.cpp

@@ -3071,7 +3071,6 @@ void OBSBasic::StopStreaming()
 
 	if (!outputHandler->Active()) {
 		ui->profileMenu->setEnabled(true);
-		blog(LOG_INFO, STREAMING_STOP);
 	}
 }