Fix issue #309, unneeded names for dummy inputs in Block Factory.
Fix issue #309, unneeded names for dummy inputs in Block Factory.

griffpatch/scratch-blocks,picklesrus/blockly,RealTimeWeb/blockly,dhalupa/blockly,rachel-fenichel/blockly,joshlory/blockly,rachel-fenichel/blockly,trinketapp/blockly,cmillani/blockly,twodee/blockly,OpenRoberta/blockly,aravart/speech-blocks,gengshenghong/scratch-blocks,gengshenghong/scratch-blocks,carlosperate/ardublockly,trodi/blockly,markocelan/blockly-minecraft,twodee/blockly,mark-friedman/blockly,google/blockly,groklearning/blockly,CocoMake7/CocoBlockly,gengshenghong/scratch-blocks,aravart/speech-blocks,markocelan/blockly-minecraft,google/blockly,drigz/blockly,CocoMake7/CocoBlockly,jano42/blockly,groklearning/blockly,trinketapp/blockly,rachel-fenichel/blockly,daarond/blockly,carlosperate/blockly,RealTimeWeb/blockly,stefan-j/blockly,lzairdking/blockly,joshlory/blockly,gengshenghong/scratch-blocks,twodee/blockly,jstnhuang/blockly,gengshenghong/scratch-blocks,RealTimeWeb/blockly,carlosperate/blockly,rachel-fenichel/blockly,carlosperate/blockly,twodee/blockly,ralic/blockly,marianoguerra/blockly,nickmain/blockly,LLK/scratch-blocks,picklesrus/blockly,google/blockly,OpenRoberta/blockly,carlosperate/ardublockly,carloslfu/blockly,trinketapp/blockly,twodee/blockly,google/blockly-devtools,google/blockly,picklesrus/blockly,griffpatch/scratch-blocks,carloslfu/blockly,nickmain/blockly,LLK/scratch-blocks,stefan-j/blockly,dhalupa/blockly,nickmain/blockly,LLK/scratch-blocks,drigz/blockly,nickmain/blockly,daarond/blockly,jstnhuang/blockly,gupta137/blockly,TechplexEngineer/blockly,TechplexEngineer/blockly,LLK/scratch-blocks,jstnhuang/blockly,rachel-fenichel/blockly,hkoi/blockly,griffpatch/scratch-blocks,carlosperate/ardublockly,dhalupa/blockly,griffpatch/scratch-blocks,marianoguerra/blockly,InspectorWidget/blockly,google/blockly-devtools,mark-friedman/blockly,markocelan/blockly-minecraft,jstnhuang/blockly,OpenRoberta/blockly,gupta137/blockly,lzairdking/blockly,google/blockly,jano42/blockly,mark-friedman/blockly,markocelan/blockly-minecraft,griffpatch/scratch-blocks,carlosperate/blockly,nickmain/blockly,CocoMake7/CocoBlockly,google/blockly,rachel-fenichel/blockly,trinketapp/blockly,sclements/scratch-blocks,mark-friedman/blockly,trodi/blockly,trodi/blockly,stefan-j/blockly,mark-friedman/blockly,joshlory/blockly,InspectorWidget/blockly,jano42/blockly,sclements/scratch-blocks,gupta137/blockly,hkoi/blockly,ralic/blockly,hkoi/blockly,daarond/blockly,cmillani/blockly,rachel-fenichel/blockly,carloslfu/blockly,twodee/blockly,google/blockly,sclements/scratch-blocks,lzairdking/blockly,mark-friedman/blockly,trodi/blockly,stefan-j/blockly,marianoguerra/blockly,InspectorWidget/blockly,cmillani/blockly,nickmain/blockly,drigz/blockly,OpenRoberta/blockly,sclements/scratch-blocks,groklearning/blockly,groklearning/blockly,ralic/blockly,lzairdking/blockly,LLK/scratch-blocks,jano42/blockly,sclements/scratch-blocks