remove a bogus assertion, add a comment.

llvm-svn: 126603
diff --git a/clang/test/CodeGen/switch-dce.c b/clang/test/CodeGen/switch-dce.c
index 3276737..95c5e03 100644
--- a/clang/test/CodeGen/switch-dce.c
+++ b/clang/test/CodeGen/switch-dce.c
@@ -167,3 +167,16 @@
   } 
 }
 
+
+int test10(void) {
+	switch(8) {
+		case 8:
+			break;
+		case 4:
+			break;
+		default:
+			dead();
+	}
+	
+	return 0;
+}