Revise the IllegalArgumentException check

Combining the two IllegalArgumentException check to mitigate the
potential information leakage.

Bug: 189858128
Test: atest ApplicationInfoTest
Test: manually using the PoC in the buganizer to ensure the symptom
      no longer exists.
Change-Id: Ice6d90e2961bf58896c603df78b1493761f42ff0

services/core/java/com/android/server/pm/PackageManagerService.java

@@ -17097,10 +17097,7 @@ public class PackageManagerService extends IPackageManager.Stub
                 callerPackageName);
         synchronized (mLock) {
             PackageSetting ps = mSettings.getPackageLPr(packageName);
-            if (ps == null) {
-                throw new IllegalArgumentException("Unknown target package " + packageName);
-            }
-            if (shouldFilterApplicationLocked(
+            if (ps == null || shouldFilterApplicationLocked(
                     ps, Binder.getCallingUid(), UserHandle.getCallingUserId())) {
                 throw new IllegalArgumentException("Unknown target package " + packageName);
             }