Hob: fix entry of recipe page can't be edited in case after clicked clear button

cancel some inviable code and fixed this issue

(Bitbake rev: d2e2c917e4a93ec7fd344a2c703d526ce7b690cf)

Signed-off-by: Liming An <limingx.l.an@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

bitbake/lib/bb/ui/crumbs/hobwidget.py

@@ -529,14 +529,8 @@ class HobNotebook(gtk.Notebook):
         self.reset_entry(search)
 
     def set_search_entry_clear_cb(self, search, icon_pos, event):
-        self.reset_entry(search)
-
-    def set_page(self, title):
-        for child in self.tabbar.children:
-            if child["title"] == title:
-                self.tabbar.current_child = child
-                self.tabbar.grab_focus()
-                self.notebook.set_current_page(child["toggled_page"])
+        if search.get_editable() == True:
+            search.set_text("")
 
 class HobWarpCellRendererText(gtk.CellRendererText):
     def __init__(self, col_number):