openshift-java-client: remove hard coded default timeout, dont set HttpUrlConnection timeout

private int getTimeout(int timeout, int openShiftTimeout, int systemPropertyTimeout, int defaultTimeout) {
	if (timeout == NO_TIMEOUT) {
		timeout = openShiftTimeout;
		if (timeout == NO_TIMEOUT) {
			timeout = systemPropertyTimeout;
			if (timeout == NO_TIMEOUT) {
				timeout = defaultTimeout;
			}
		}
	}
	return timeout;
}

private void setReadTimeout(int timeout, URLConnection connection) {
	connection.setReadTimeout(
			getTimeout(
					timeout,
					getSystemPropertyInteger(SYSPROP_OPENSHIFT_READ_TIMEOUT),
					getSystemPropertyInteger(SYSPROP_DEFAULT_READ_TIMEOUT),
					DEFAULT_READ_TIMEOUT));
}