PMS: check outInfo for null during delete

It appears that changing an application's signature during boot can pass
an outInfo of null to this function.

Bug: 7402550
Change-Id: I839fea6c8ee728a352c6b906f0fa6671c85f8694

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

@@ -8291,7 +8291,7 @@ public class PackageManagerService extends IPackageManager.Stub {
         removePackageDataLI(ps, outInfo, flags, writeSettings);
 
         // Delete application code and resources
-        if (deleteCodeAndResources) {
+        if (deleteCodeAndResources && (outInfo != null)) {
             outInfo.args = createInstallArgs(packageFlagsToInstallFlags(ps), ps.codePathString,
                     ps.resourcePathString, ps.nativeLibraryPathString);
         }