Revert "UI: Add confirmation when clicking stop stream"

This reverts commit a508c17f0a7048a5592d91c0a6587bfb59c28e84.

I realized that this would become more of an annoyance for most people
rather than anything helpful.  This has only happened only twice that I
am aware of in all the years that the program has been around.

obs/data/locale/en-US.ini

@@ -224,8 +224,6 @@ Basic.Main.StartRecording="Start Recording"
 Basic.Main.StartStreaming="Start Streaming"
 Basic.Main.StopRecording="Stop Recording"
 Basic.Main.StopStreaming="Stop Streaming"
-Basic.Main.StopStreaming.Title="Stop stream?"
-Basic.Main.StopStreaming.Text="Are you sure you want to stop the stream?"
 
 # basic mode file menu
 Basic.MainMenu.File="&File"

obs/window-basic-main.cpp

@@ -3058,12 +3058,6 @@ void OBSBasic::StartStreaming()
 
 void OBSBasic::StopStreaming()
 {
-	QMessageBox::StandardButton button = QMessageBox::question(this,
-			QTStr("Basic.Main.StopStreaming.Title"),
-			QTStr("Basic.Main.StopStreaming.Text"));
-	if (button == QMessageBox::No)
-		return;
-
 	SaveProject();
 
 	if (outputHandler->StreamingActive())