Remove modules-utils-build_system from filegroup

Remove modules-utils-build_system from static lib of service-wifi.jar,
because it is already in static lib of framework-wifi.jar
Cherry-picked from https://android-review.googlesource.com/1792931

Bug: 195965491
Test: build apex
Merged-In: Ica496e67dd8b7c83aa93a512d06ad1a05d1c9c8d
Change-Id: Ib2fc438eb01787a0910c29601b579c17d06130de