Remove RemoteProvisioner in required field

We should avoid inter-partition required field, because it can break
partial build.

And this module is explictly added in
device/google/cuttlefish/shared/device.mk, so we don't need to add it in
to required field

Test: unbundled vendor build
Change-Id: I3cd8ab9d200523bd2a631fcb16e118aabc0c9c51
diff --git a/guest/hals/keymint/rust/Android.bp b/guest/hals/keymint/rust/Android.bp
index 2bacac2..c073d0a 100644
--- a/guest/hals/keymint/rust/Android.bp
+++ b/guest/hals/keymint/rust/Android.bp
@@ -38,7 +38,6 @@
         "liblog_rust",
     ],
     required: [
-        "RemoteProvisioner",
         "android.hardware.hardware_keystore.rust-keymint.xml",
     ],
 }