RMX1921: Kang some dexpreopt flags from go target makefile

* Remove SystemUI from dexpreopt. It was added in source already.

Taken form [1]. Also nuke because PRODUCT_DEXPREOPT_SPEED_APPS its already handled by the rom's vendor and is not required in this case.

[1]: https://android.googlesource.com/platform/build.git/+/refs/tags/android-13.0.0_r66/target/product/go_defaults_common.mk



Signed-off-by: Dakkshesh <dakkshesh5@gmail.com>
Signed-off-by: kaderbava <ksbava7325@gmail.com>