diff --git a/services/core/java/com/android/server/StorageManagerService.java b/services/core/java/com/android/server/StorageManagerService.java
index d214b53461e04..210613ef3925e 100644
--- a/services/core/java/com/android/server/StorageManagerService.java
+++ b/services/core/java/com/android/server/StorageManagerService.java
@@ -38,7 +38,6 @@ import static android.os.ParcelFileDescriptor.MODE_READ_WRITE;
 import static android.os.storage.OnObbStateChangeListener.ERROR_ALREADY_MOUNTED;
 import static android.os.storage.OnObbStateChangeListener.ERROR_COULD_NOT_MOUNT;
 import static android.os.storage.OnObbStateChangeListener.ERROR_COULD_NOT_UNMOUNT;
-import static android.os.storage.OnObbStateChangeListener.ERROR_INTERNAL;
 import static android.os.storage.OnObbStateChangeListener.ERROR_NOT_MOUNTED;
 import static android.os.storage.OnObbStateChangeListener.ERROR_PERMISSION_DENIED;
 import static android.os.storage.OnObbStateChangeListener.MOUNTED;
@@ -613,18 +612,6 @@ class StorageManagerService extends IStorageManager.Stub
     private final Callbacks mCallbacks;
     private final LockPatternUtils mLockPatternUtils;
 
-    /**
-     * The size of the crypto algorithm key in bits for OBB files. Currently
-     * Twofish is used which takes 128-bit keys.
-     */
-    private static final int CRYPTO_ALGORITHM_KEY_SIZE = 128;
-
-    /**
-     * The number of times to run SHA1 in the PBKDF2 function for OBB files.
-     * 1024 is reasonably secure and not too slow.
-     */
-    private static final int PBKDF2_HASH_ROUNDS = 1024;
-
     private static final String ANR_DELAY_MILLIS_DEVICE_CONFIG_KEY =
             "anr_delay_millis";