Remove #mNewRollbacks (10/n)

mNewRollbacks now is always empty and unsed. We can safely remove it
now.

Bug: 147400979
Test: atest RollbackTest
Change-Id: I31f6b981a9a3eedeb8ef645e93aea1e6d5a7e4e5

services/core/java/com/android/server/rollback/RollbackManagerServiceImpl.java

@@ -50,7 +50,6 @@ import android.os.SystemClock;
 import android.os.UserHandle;
 import android.os.UserManager;
 import android.provider.DeviceConfig;
-import android.util.ArraySet;
 import android.util.IntArray;
 import android.util.Log;
 import android.util.LongArrayQueue;
@@ -121,10 +120,6 @@ class RollbackManagerServiceImpl extends IRollbackManager.Stub {
     @GuardedBy("mLock")
     private final SparseBooleanArray mAllocatedRollbackIds = new SparseBooleanArray();
 
-    // Rollbacks we are in the process of enabling.
-    @GuardedBy("mLock")
-    private final Set<Rollback> mNewRollbacks = new ArraySet<>();
-
     // The list of all rollbacks, including available and committed rollbacks.
     @GuardedBy("mLock")
     private final List<Rollback> mRollbacks;
@@ -442,15 +437,6 @@ class RollbackManagerServiceImpl extends IRollbackManager.Stub {
                     rollback.delete(mAppDataRollbackHelper);
                 }
             }
-            Iterator<Rollback> iter2 = mNewRollbacks.iterator();
-            while (iter2.hasNext()) {
-                Rollback newRollback = iter2.next();
-                if (newRollback.includesPackage(packageName)) {
-                    iter2.remove();
-                    newRollback.delete(mAppDataRollbackHelper);
-                }
-
-            }
         }
     }
 
@@ -826,13 +812,6 @@ class RollbackManagerServiceImpl extends IRollbackManager.Stub {
         }
 
         synchronized (mLock) {
-            Rollback newRollback = getNewRollbackForPackageSessionLocked(sessionId);
-            if (newRollback != null) {
-                Slog.w(TAG, "Delete new rollback id=" + newRollback.info.getRollbackId()
-                        + " for session id=" + sessionId);
-                mNewRollbacks.remove(newRollback);
-                newRollback.delete(mAppDataRollbackHelper);
-            }
             Iterator<Rollback> iter = mRollbacks.iterator();
             while (iter.hasNext()) {
                 Rollback rollback = iter.next();
@@ -968,15 +947,10 @@ class RollbackManagerServiceImpl extends IRollbackManager.Stub {
                     + " users=" + Arrays.toString(userIds));
         }
         synchronized (mLock) {
-            // staged installs
             for (int i = 0; i < mRollbacks.size(); i++) {
                 Rollback rollback = mRollbacks.get(i);
                 rollback.snapshotUserData(packageName, userIds, mAppDataRollbackHelper);
             }
-            // non-staged installs
-            for (Rollback rollback : mNewRollbacks) {
-                rollback.snapshotUserData(packageName, userIds, mAppDataRollbackHelper);
-            }
         }
     }