kate/katesort: fix a typo

Thanks to adem for noticing this on weblate

Signed-off-by: Alexander Golubev <fatzer2@gmail.com>

kate/katesort/sortdialog.cpp

@@ -36,7 +36,7 @@ SortDialog::SortDialog ( TQWidget* parent, const char* name, bool modal, WFlags
   TQWhatsThis::add(m_checkBoxCase,i18n(
     "Check this for case sensitive sort."));
   TQWhatsThis::add(m_checkBoxUnique,i18n(
-    "Check this to removed all duplicated records."));
+    "Check this to remove all duplicated records."));
   TQWhatsThis::add(m_checkBoxByCol,i18n(
     "Check this for sorting by specific column.\n\n"
     "If a part of one line is selected, "