void unloadLanguage(LanguageID languageID) {
		if (languages.containsKey(languageID)) {
			languages.put(languageID, null);
		}
	}
Construct language provider (intended for test use only)
@param ldefsFile language definitions file
@throws SAXException if parse error occurs
@throws IOException if IO error occurs
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/app/plugin/processors/sleigh/SleighLanguageProvider.java