No longer set the language before restarting (PR #6415)

Fixes #4561
When a new language is selected (on the general settings dialog) and the ok
button is pushed, the language is not changed until until NVDA is restarted.

This fixes an issue where some parts of the UI are translated and some
are not.

source/gui/settingsDialogs.py

@@ -257,13 +257,6 @@ def onCopySettings(self,evt):
 
 	def onOk(self,evt):
 		newLanguage=[x[0] for x in self.languageNames][self.languageList.GetSelection()]
-		if newLanguage!=self.oldLanguage:
-			try:
-				languageHandler.setLanguage(newLanguage)
-			except:
-				log.error("languageHandler.setLanguage", exc_info=True)
-				gui.messageBox(_("Error in %s language file")%newLanguage,_("Language Error"),wx.OK|wx.ICON_WARNING,self)
-				return
 		config.conf["general"]["language"]=newLanguage
 		config.conf["general"]["saveConfigurationOnExit"]=self.saveOnExitCheckBox.IsChecked()
 		config.conf["general"]["askToExit"]=self.askToExitCheckBox.IsChecked()