For user and userdebug generate error if DEXPREOPT is not enabled

This prevents cases where system_server is running in interpreter
only mode.

Removed unused flag in product.mk

(cherry-picked from commit 27f42874)

Bug: 74209329
Test: WITH_DEXPREOPT=false make
Merged-In: I4ab3afed95a5baf77d0cd089dafaa18bcc1913e5
Change-Id: I4ab3afed95a5baf77d0cd089dafaa18bcc1913e5