private Object getRawValue(String key) {
        if (key == null) {
            throw new NullPointerException("Key must not be null.");
        }

        synchronized (this.confData) {
            return this.confData.get(key);
        }
    }
Removes given config option from the configuration.

@param configOption config option to remove
@param <T> Type of the config option
@return true is config has been removed, false otherwise
inlong-sort/sort-common/src/main/java/org/apache/inlong/sort/configuration/Configuration.java