Keystore 2.0: Remove references to Keystore 1

This patch removes an unused reference to libkeystore_binder, a target
that is about to be removed.

Bug: 171305684
Test: N/A
Merged-In: I100c8d536241ac6ba7a99b1c2dfaf2930decd387
Change-Id: I100c8d536241ac6ba7a99b1c2dfaf2930decd387

services/core/jni/Android.bp

@@ -110,7 +110,6 @@ cc_defaults {
         "libhardware",
         "libhardware_legacy",
         "libhidlbase",
-        "libkeystore_binder",
         "libmtp",
         "libnativehelper",
         "libprocessgroup",