public boolean remove(int key) {
    	int index = indexer.remove(key);
        if (index >= 0) {
        	values[index] = null;
            return true;
        }
        return false;
    }
Removes a key from the hashtable
@param key key to be removed from the hashtable.
@return true if key is found and removed, false otherwise.
Ghidra/Framework/Generic/src/main/java/ghidra/util/datastruct/IntObjectHashtable.java