Remove apex component from system.img whitelist

Updatable apex components are included in the mainline,
so no need to be whitelisted anymore

Bug: 135411991
Test: Built the following products successfully
      $ lunch aosp_cf_x86_phone; m -j
      $ lunch aosp_cf_x86_64_phone; m -j
      $ lunch aosp_cf_arm64_phone; m -j

Change-Id: I4174877be873b91c0ee642e1c18472b6b689c1a7
4 files changed