Remove unnecessary link libraries from libbufferhub

Test: build
Change-Id: I0bca8292fa93eb35c894ff97d2b6686e448a8b24
diff --git a/libs/vr/libbufferhub/Android.bp b/libs/vr/libbufferhub/Android.bp
index 6d202ae..2fcee7b 100644
--- a/libs/vr/libbufferhub/Android.bp
+++ b/libs/vr/libbufferhub/Android.bp
@@ -29,11 +29,9 @@
 sharedLibraries = [
     "libbase",
     "libcutils",
-    "libhardware",
     "liblog",
     "libui",
     "libutils",
-    "libnativewindow",
     "libpdx_default_transport",
 ]