(#4504) - remove dead multipart.js file
(#4504) - remove dead multipart.js file

shimaore/pouchdb,seigel/pouchdb,willholley/pouchdb,lukevanhorn/pouchdb,willholley/pouchdb,lukevanhorn/pouchdb,colinskow/pouchdb,TechnicalPursuit/pouchdb,lukevanhorn/pouchdb,garrensmith/pouchdb,daleharvey/pouchdb,jhs/pouchdb,garrensmith/pouchdb,shimaore/pouchdb,tohagan/pouchdb,tyler-johnson/pouchdb,nickcolley/pouchdb,bbenezech/pouchdb,colinskow/pouchdb,garrensmith/pouchdb,jhs/pouchdb,seigel/pouchdb,TechnicalPursuit/pouchdb,pouchdb/pouchdb,seigel/pouchdb,pouchdb/pouchdb,daleharvey/pouchdb,cdaringe/pouchdb,yaronyg/pouchdb,mikeymckay/pouchdb,tyler-johnson/pouchdb,willholley/pouchdb,cdaringe/pouchdb,yaronyg/pouchdb,mikeymckay/pouchdb,yaronyg/pouchdb,tyler-johnson/pouchdb,shimaore/pouchdb,nickcolley/pouchdb,tohagan/pouchdb,tohagan/pouchdb,pouchdb/pouchdb,bbenezech/pouchdb,jhs/pouchdb,TechnicalPursuit/pouchdb,bbenezech/pouchdb,daleharvey/pouchdb,mikeymckay/pouchdb,cdaringe/pouchdb,colinskow/pouchdb,nickcolley/pouchdb