revert ability to exit echo app

caused a regression, as only supported VOICE, not VIDEO etc.
Left in small formatting change.

(issue #16880)



git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.4@249946 65c4cc65-6c06-0410-ace0-fbb531ad65f3

apps/app_echo.c

@@ -68,23 +68,16 @@ static int echo_exec(struct ast_channel *chan, void *data)
 		if (!f) {
 			break;
 		}
-		switch (f->frametype) {
-		case AST_FRAME_VOICE:
-		case AST_FRAME_DTMF:
-			f->delivery.tv_sec = 0;
-			f->delivery.tv_usec = 0;
-			if (ast_write(chan, f)) {
-				ast_frfree(f);
-				goto end;
-			}
-			if ((f->frametype == AST_FRAME_DTMF) && (f->subclass == '#')) {
-				res = 0;
-				ast_frfree(f);
-				goto end;
-			}
-			break;
-		default:
-			break;
+		f->delivery.tv_sec = 0;
+		f->delivery.tv_usec = 0;
+		if (ast_write(chan, f)) {
+			ast_frfree(f);
+			goto end;
+		}
+		if ((f->frametype == AST_FRAME_DTMF) && (f->subclass == '#')) {
+			res = 0;
+			ast_frfree(f);
+			goto end;
 		}
 		ast_frfree(f);
 	}