Remove ses from $wgExtraLanguageNames and $wgTranslateLanguageFallbacks

A messages file for this language was added in
Idb53b501d11c295a7d1147724582456220720882

Change-Id: Ifc4fe08ddd4a6dbfbca48a1d363596074c52eee5
Merge "Remove ses from $wgExtraLanguageNames and $wgTranslateLanguageFallbacks"