Remove isForegroundJob.

This was supposed to be removed at the same we removed the related APIs
in JobInfo.Builder. It's not being used by anyone.

Bug: 186475837
Test: Android builds
Change-Id: Ib57029b7ba7e0c7b3f5bd36ba29a96e89eefb270

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

@@ -362,14 +362,6 @@ public class JobParameters implements Parcelable {
         return mIsExpedited;
     }
 
-    /**
-     * @deprecated Use {@link #isExpeditedJob()} instead.
-     */
-    @Deprecated
-    public boolean isForegroundJob() {
-        return mIsExpedited;
-    }
-
     /**
      * For jobs with {@link android.app.job.JobInfo.Builder#setOverrideDeadline(long)} set, this
      * provides an easy way to tell whether the job is being executed due to the deadline

core/api/current.txt

@@ -8014,7 +8014,6 @@ package android.app.job {
     method @Nullable public String[] getTriggeredContentAuthorities();
     method @Nullable public android.net.Uri[] getTriggeredContentUris();
     method public boolean isExpeditedJob();
-    method @Deprecated public boolean isForegroundJob();
     method public boolean isOverrideDeadlineExpired();
     method public void writeToParcel(android.os.Parcel, int);
     field @NonNull public static final android.os.Parcelable.Creator<android.app.job.JobParameters> CREATOR;