Remove uncessary dependency of libhwui

  - libRS.so is not directly used. It is accessed by libRScpp.so.

Test: mm, and boot-up test on sailfish
Change-Id: I5742d2ee3b34ef09bcb997524408affce1ace8fd
(cherry picked from commit 629fd3d48ba1dbedc6e84e91a26f72fb1fba0e22)
2 files changed