fix(sample): Remove div with no size, sine it shrinks the pivot. (#3915) #120

Job	Run time
build-and-deploy (app-lob, run generate-live-editing:app-lob, angular-demos-lob, angular-demos-lo...	2m 32s
build-and-deploy (app, run generate-live-editing, angular-demos, angular-demos, dist/app, run bui...	12m 47s
build-and-deploy (app-crm, run generate-live-editing:app-crm, angular-demos-crm, angular-demos-gr...	1m 39s
	16m 58s

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