Schedule: Not needed comma if no position filled in by speaker

[mariobehling]

On the schedule a comma and space show up even though they are not required. This happens if the speaker has not filled in a position. Expected no comma and space should show up if the speaker has not filled in a position. Equally if the speaker has not filled in a company no comma and space should show up.

Compare https://eventyay.com/e/3dbaaa50/schedule

[Gautam-Arora24]

Working on this

[aryancse123]

Working on this bug