Minor code simplification.

Test: atest VerifyAppsOverUsbPreferenceControllerTest
Bug: 135751498
Change-Id: I51696147a211792e53cc6178e0912c760d667034
diff --git a/src/com/android/settings/development/VerifyAppsOverUsbPreferenceController.java b/src/com/android/settings/development/VerifyAppsOverUsbPreferenceController.java
index 3b05cef..56d49da 100644
--- a/src/com/android/settings/development/VerifyAppsOverUsbPreferenceController.java
+++ b/src/com/android/settings/development/VerifyAppsOverUsbPreferenceController.java
@@ -151,6 +151,6 @@
         verification.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
         final List<ResolveInfo> receivers = mPackageManager.queryBroadcastReceivers(
                 verification, 0 /* flags */);
-        return receivers.size() != 0;
+        return !receivers.isEmpty();
     }
 }