Delete product in installClean

Bug: 79780604
Test: succeeded building and tested with taimen
Change-Id: I11c4ecb839a28d852e0d5faf762afda33166ad48
diff --git a/ui/build/cleanbuild.go b/ui/build/cleanbuild.go
index f2de2cd..24a8c7a 100644
--- a/ui/build/cleanbuild.go
+++ b/ui/build/cleanbuild.go
@@ -107,6 +107,7 @@
 		productOut("system"),
 		productOut("system_other"),
 		productOut("vendor"),
+		productOut("product"),
 		productOut("oem"),
 		productOut("obj/FAKE"),
 		productOut("breakpad"),