Cleanup: use shared apex_key

Bug: 296524155
Test: m
Change-Id: I353d4803d0e6bd16d4a5617ca7790d33ff589747
diff --git a/uwb/aidl/default/Android.bp b/uwb/aidl/default/Android.bp
index 916646c..f9b79de 100644
--- a/uwb/aidl/default/Android.bp
+++ b/uwb/aidl/default/Android.bp
@@ -48,23 +48,12 @@
     installable: false,
 }
 
-apex_key {
-    name: "com.android.hardware.uwb.key",
-    public_key: "com.android.hardware.uwb.avbpubkey",
-    private_key: "com.android.hardware.uwb.pem",
-}
-
-android_app_certificate {
-    name: "com.android.hardware.uwb.certificate",
-    certificate: "com.android.hardware.uwb",
-}
-
 apex {
     name: "com.android.hardware.uwb",
     manifest: "manifest.json",
     file_contexts: "file_contexts",
-    key: "com.android.hardware.uwb.key",
-    certificate: ":com.android.hardware.uwb.certificate",
+    key: "com.android.hardware.key",
+    certificate: ":com.android.hardware.certificate",
     updatable: false,
     vendor: true,