Revert "prebuilt: apns-conf-cdma.xml: Fix Sprint APNs and clean up APNs for test SIM cards"

This reverts commit e2424bc1ebd31313c9a5a13b11361399a70d3a38.
Merge branch 'cm-10.2' of github.com:Team-Hydra/android_vendor_cm into cm-10.2