Removing assignments to localeScriptWasComputed in aapt.

On certain devices running Android M with unknown vendor
modifications. Setting the localeScriptWasComputed bit in
the resource parameters struct causes the translations
for many languages to fail to load. The app then
defaults to English.

This has been reported on the following devices:
Motorola XT1086, XT1096, and XT1586, HTC One, and Huawei
MediaPad 10 LINK.

This change works around the issue by never setting
localeScriptWasComputed in aapt and instead always
writing the default value of false.

Bug: 27872476
Change-Id: Id638d1d0e5f9dcb1c02e65d67667d76174c69b9e