remove the "depth" attribute now that we have isServer

mailnews/base/public/nsIMsgFolder.idl

@@ -83,8 +83,6 @@ interface nsIMsgFolder : nsIFolder {
 
 	string GenerateUniqueSubfolderName(in string prefix, in nsIMsgFolder otherFolder);
 
-	attribute unsigned long depth;
-
 	void UpdateSummaryTotals(in boolean force);
 	void SummaryChanged();
 	long GetNumUnread(in boolean deep);

mailnews/base/util/nsMsgFolder.cpp

@@ -48,7 +48,6 @@ nsMsgFolder::nsMsgFolder(void)
     mParent(nsnull),
     mNumUnreadMessages(-1),
     mNumTotalMessages(-1),
-    mDepth(0), 
     mPrefFlags(0),
     mBiffState(nsMsgBiffState_NoMail),
     mNumNewBiffMessages(0),
@@ -819,21 +818,6 @@ NS_IMETHODIMP nsMsgFolder::GenerateUniqueSubfolderName(const char *prefix, nsIMs
 	return NS_OK;
 }
 
-NS_IMETHODIMP nsMsgFolder::GetDepth(PRUint32 *depth)
-{
-	if(!depth)
-		return NS_ERROR_NULL_POINTER;
-	*depth = mDepth;
-	return NS_OK;
-	
-}
-
-NS_IMETHODIMP nsMsgFolder::SetDepth(PRUint32 depth)
-{
-	mDepth = depth;
-	return NS_OK;
-}
-
 NS_IMETHODIMP nsMsgFolder::UpdateSummaryTotals(PRBool /* force */)
 {
 	//We don't support this

mailnews/base/util/nsMsgFolder.h

@@ -153,9 +153,6 @@ public:
   NS_IMETHOD GenerateUniqueSubfolderName(const char *prefix, nsIMsgFolder *otherFolder,
                                          char **name);
 
-  NS_IMETHOD GetDepth(PRUint32 *depth);
-  NS_IMETHOD SetDepth(PRUint32 depth);
-
   // updates num messages and num unread - should be pure virtual
   // when I get around to implementing in all subclasses?
   NS_IMETHOD UpdateSummaryTotals(PRBool force);
@@ -330,7 +327,6 @@ protected:
   nsVoidArray *mListeners; //This can't be an nsISupportsArray because due to
 													 //ownership issues, listeners can't be AddRef'd
 
-  PRUint8 mDepth;
   PRInt32 mPrefFlags;       // prefs like MSG_PREF_OFFLINE, MSG_PREF_ONE_PANE, etc
   nsISupports *mSemaphoreHolder; // set when the folder is being written to
 								//Due to ownership issues, this won't be AddRef'd.