Remove parenthesis from PRODUCT_MODEL which breaks some User-Agent parsing

Bug: 192583022
Test: Confirm passwords.google.com does not think browser is unsupported
Change-Id: I8db55ab873ee6e4f66058ddf33edb79d964ccda9
diff --git a/aosp_oriole_64.mk b/aosp_oriole_64.mk
index f06c3ec..b21fb8e 100644
--- a/aosp_oriole_64.mk
+++ b/aosp_oriole_64.mk
@@ -16,4 +16,4 @@
 $(call inherit-product, device/google/raviole/aosp_oriole.mk)
 
 PRODUCT_NAME := aosp_oriole_64
-PRODUCT_MODEL := AOSP on Oriole (64-bit only)
+PRODUCT_MODEL := AOSP on Oriole 64-bit only