Update documentation.

Remove obsolete comments. We no longer require apps to specify at least
one constraint.
Fix typo.

Bug: 118636037
Bug: 141645789
Test: N/A
Change-Id: I1abf14c10f7330bccb51600eb82a398208a4f542

apex/jobscheduler/framework/java/android/app/job/JobInfo.java

@@ -53,9 +53,8 @@ import java.util.Objects;
  * Container of data passed to the {@link android.app.job.JobScheduler} fully encapsulating the
  * parameters required to schedule work against the calling application. These are constructed
  * using the {@link JobInfo.Builder}.
- * You must specify at least one sort of constraint on the JobInfo object that you are creating.
  * The goal here is to provide the scheduler with high-level semantics about the work you want to
- * accomplish. Doing otherwise with throw an exception in your app.
+ * accomplish.
  */
 public class JobInfo implements Parcelable {
     private static String TAG = "JobInfo";
@@ -147,7 +146,7 @@ public class JobInfo implements Parcelable {
 
     /**
      * Query the minimum interval allowed for periodic scheduled jobs.  Attempting
-     * to declare a smaller period that this when scheduling a job will result in a
+     * to declare a smaller period than this when scheduling a job will result in a
      * job that is still periodic, but will run with this effective period.
      *
      * @return The minimum available interval for scheduling periodic jobs, in milliseconds.