chore(gulp/build) remove duplicate !buildImages
chore(gulp/build) remove duplicate !buildImages

TheOneTheOnlyDavidBrown/generator-ng-poly,Ins87/generator-ng-poly,TheOneTheOnlyDavidBrown/generator-ng-poly,dustinspecker/generator-ng-poly,ballerabdude/generator-ng-poly,ballerabdude/generator-ng-poly,ballerabdude/generator-ng-poly,dustinspecker/generator-ng-poly,Ins87/generator-ng-poly,egeland/generator-ng-poly,Ins87/generator-ng-poly,TheOneTheOnlyDavidBrown/generator-ng-poly,egeland/generator-ng-poly,dustinspecker/generator-ng-poly,egeland/generator-ng-poly