Remove moot `version` property from bower.json
Remove moot `version` property from bower.json

Per bower/bower.json-spec@a325da3
wil93/share-button,mahemoff/share-button,dribehance/share-button,carrot/share-button,davestevens/share-button,dkleissa/share-button,dribehance/share-button,carrot/share-button,wil93/share-button,hongaar/share-button,bukalov/share-button,dkleissa/share-button,mahemoff/share-button,bukalov/share-button,hongaar/share-button,davestevens/share-button