ANDROID: Drop left-over out-of-tree difference after 5.10-rc1 merge

This originally originated from c3826e49 ("FROMLIST:
x86/boot/compressed: Force hidden visibility for all symbol references")
and was mostly (but not completely) reverted during the 5.10-rc1 merge.

Fixes: 43105055 ("Merge 34eb62d8 ("Merge tag 'core-build-2020-10-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip"

) into android-mainline")
Change-Id: I1147c5bd418fded27a02feed31b748d94cbdb8d5
Signed-off-by: Matthias Maennich <maennich@google.com>