Fix WasiDomTest1 to compile - mistakenly, it used NoThreads 2x in the uses clause

demo/wasienv/dom/WasiDomTest1.lpr

@@ -8,7 +8,6 @@ library WasiDomTest1;
 {off $DEFINE UseDucet}
 
 uses
-  nothreads,
   {$IFDEF UseDucet}
   unicodeducet, unicodedata, fpwidestring,
   {$ENDIF}