Remove reference to ModularInput.
Remove reference to ModularInput.

Fixes the build which was broken. ModularInput was cruft from private meanderings. Accidentally committed a reference to it.

splunk/splunk-sdk-java,splunk/splunk-sdk-java,splunk/splunk-sdk-java,splunk/splunk-sdk-java,splunk/splunk-sdk-java,dkelmer/splunk-sdk-java,dkelmer/splunk-sdk-java,dkelmer/splunk-sdk-java,dkelmer/splunk-sdk-java,splunk/splunk-sdk-java,dkelmer/splunk-sdk-java