remove unused EESpellState::LanguageNotInstalled

Change-Id: I8467f2807d77dad4290b0eff1336eaab40cfb20a
Reviewed-on: https://gerrit.libreoffice.org/63902
Tested-by: Jenkins
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>

compilerplugins/clang/unusedenumconstants.untouched.results

@@ -148,8 +148,6 @@ include/desktop/exithelper.h:29
     int EXITHELPER_FATAL_ERROR
 include/editeng/borderline.hxx:128
     enum SvxBorderLineStyle BORDER_LINE_STYLE_MAX
-include/editeng/editdata.hxx:41
-    enum EESpellState LanguageNotInstalled
 include/i18nutil/transliteration.hxx:45
     enum TransliterationFlags NumToTextLower_zh_CN
 include/i18nutil/transliteration.hxx:47

include/editeng/editdata.hxx

@@ -38,7 +38,7 @@ enum class EEHorizontalTextDirection { Default, L2R, R2L };
 enum class EESelectionMode  { Std, Hidden };
     // EESelectionMode::Hidden can be used to completely hide the selection. This is useful e.g. when you want show the selection
     // only as long as your window (which the edit view works on) has the focus
-enum class EESpellState  { Ok, LanguageNotInstalled, NoSpeller, ErrorFound };
+enum class EESpellState  { Ok, NoSpeller, ErrorFound };
 enum class EEAnchorMode {
             TopLeft,     TopHCenter,     TopRight,
             VCenterLeft, VCenterHCenter, VCenterRight,