How to remove Kinesis Video streams from my AWS Console account...?

Two types of resources would be in your console relative to Kinesis Video Streams.

1. Video Streams
2. Signaling Channels

These can exist in any region so I recommend reviewing all. In the console for each region navigate to Kinesis Video Streams->Video Streams AND/OR Kinesis Video Streams->Signaling Channels Check the boxes for all of the streams you desire to delete. In the upper right click Delete. To confirm deletion, type delete in the field. Click Delete.