Change profile info box. (Edit profile/...is your friend)

Change the size: 

style>

.profile-info {

  border: 2px solid grey;    /* same style as standard SpaceHey borders */

  display: flex;

  align-items: center;

  justify-content: center;

  height: 30px;              /* make it thinner */

  margin-bottom: 10px;

  background-color: black;   /* solid black background */

}

</style>

Remove it completely:

style>

.profile-info {

  display: none !important;

}

</style>

Make it invisible, this keeps some spacing:

style>

.profile-info {

  visibility: hidden;

  height: 0;

  padding: 0;

  margin: 0;

  border: none;

}

</style>