Pull out IntentWorker from IntentManager

- IntentWorker is placed in phase package
- Make public IntentProcessPhase subclasses package private now

Change-Id: Ie7d218fe5d8a516f3913ff8881d9d17cfd8e4c46
diff --git a/core/net/src/main/java/org/onosproject/net/intent/impl/phase/WithdrawRequest.java b/core/net/src/main/java/org/onosproject/net/intent/impl/phase/WithdrawRequest.java
index f2e120f..7940cf7 100644
--- a/core/net/src/main/java/org/onosproject/net/intent/impl/phase/WithdrawRequest.java
+++ b/core/net/src/main/java/org/onosproject/net/intent/impl/phase/WithdrawRequest.java
@@ -25,13 +25,13 @@
 /**
  * Represents a phase of requesting a withdraw of an intent.
  */
-public final class WithdrawRequest implements IntentProcessPhase {
+final class WithdrawRequest implements IntentProcessPhase {
 
     private final IntentProcessor processor;
     private final IntentData pending;
     private final IntentData current;
 
-    public WithdrawRequest(IntentProcessor processor, IntentData intentData, IntentData current) {
+    WithdrawRequest(IntentProcessor processor, IntentData intentData, IntentData current) {
         this.processor = checkNotNull(processor);
         this.pending = checkNotNull(intentData);
         this.current = checkNotNull(current);