Porting a minotaur fix back into mozilla mail.

Bug #200608 --> hide the sort indicator for the folder pane and the address book.

r/sr=sspitzer

themes/classic/messenger/addressbook/addressPanes.css

@@ -47,3 +47,10 @@ treechildren:-moz-tree-image(DirCol, IsRemote-true, IsSecure-true) {
   list-style-image: url("chrome://messenger/skin/addressbook/icons/secure-remote-addrbook.gif");
 }
 
+#dirTree [sortDirection="ascending"] {
+  list-style-image: none;
+}
+
+#dirTree [sortDirection="descending"] {
+  list-style-image: none;
+}

themes/classic/messenger/folderPane.css

@@ -170,3 +170,10 @@ treechildren:-moz-tree-image(syncCol, isServer-true) {
   text-align: right;
 }
 
+#folderNameCol [sortDirection="ascending"] {
+  list-style-image: none;
+}
+
+#folderNameCol [sortDirection="descending"] {
+  list-style-image: none;
+}

themes/modern/messenger/addressbook/addressPanes.css

@@ -61,3 +61,10 @@ treechildren:-moz-tree-image(DirCol, IsRemote-true, IsSecure-true) {
   list-style-image: url("chrome://messenger/skin/addressbook/icons/secure-directory.gif");
 }
 
+#dirTree [sortDirection="ascending"] {
+  list-style-image: none;
+}
+
+#dirTree [sortDirection="descending"] {
+  list-style-image: none;
+}

themes/modern/messenger/folderPane.css

@@ -182,3 +182,10 @@ treechildren:-moz-tree-image(syncCol, isServer-true) {
   text-align: right;
 }
 
+#folderNameCol [sortDirection="ascending"] {
+  list-style-image: none;
+}
+
+#folderNameCol [sortDirection="descending"] {
+  list-style-image: none;
+}