Remove a comment from ConnectivityService

This comment is not true anymore since NetworkMonitor is not only
verifying the default network but also verifying VPN when private
DNS is enabled.

Test: Build pass.
Change-Id: Ib975aa28c84b9974a73d1baca9d5185c01b71217
diff --git a/services/core/java/com/android/server/ConnectivityService.java b/services/core/java/com/android/server/ConnectivityService.java
index fba1e79..d275d65 100644
--- a/services/core/java/com/android/server/ConnectivityService.java
+++ b/services/core/java/com/android/server/ConnectivityService.java
@@ -5854,7 +5854,6 @@
     @GuardedBy("mBlockedAppUids")
     private final HashSet<Integer> mBlockedAppUids = new HashSet<>();
 
-    // Note: if mDefaultRequest is changed, NetworkMonitor needs to be updated.
     @NonNull
     private final NetworkRequest mDefaultRequest;
     // The NetworkAgentInfo currently satisfying the default request, if any.