Fix "the note of contact can't be deleted successfully"

Reproduce step:
1.login Google account
2.launch the "Contacts" app
3.Edit a new contact and click the button "ADD ANOTHER FIFLED">select "Notes" item>Edit notes to this contact
4.Check this contact info include notes
5.Click "Edit" icon and clear the edited notes info
6.click top-left icon "√"
7.Check the contact info and found the note still exist.
Analysis:
When the only entry deleted, the mAboutCard fails to refresh its entries as
the size is 0. So shouldShow() will return true based on the old data.

Change-Id: I852443f60c7ce7df10d045b1d5f7baabccb35606
diff --git a/src/com/android/contacts/quickcontact/QuickContactActivity.java b/src/com/android/contacts/quickcontact/QuickContactActivity.java
index e5574d9..85b4d00 100644
--- a/src/com/android/contacts/quickcontact/QuickContactActivity.java
+++ b/src/com/android/contacts/quickcontact/QuickContactActivity.java
@@ -1049,14 +1049,12 @@
             mAboutCard.setTitle(customAboutCardName);
         }
 
-        if (aboutCardEntries.size() > 0) {
-            mAboutCard.initialize(aboutCardEntries,
-                    /* numInitialVisibleEntries = */ 1,
-                    /* isExpanded = */ true,
-                    /* isAlwaysExpanded = */ true,
-                    mExpandingEntryCardViewListener,
-                    mScroller);
-        }
+        mAboutCard.initialize(aboutCardEntries,
+                /* numInitialVisibleEntries = */ 1,
+                /* isExpanded = */ true,
+                /* isAlwaysExpanded = */ true,
+                mExpandingEntryCardViewListener,
+                mScroller);
 
         if (contactCardEntries.size() == 0 && aboutCardEntries.size() == 0) {
             initializeNoContactDetailCard();