Revert "Issue #85: increased the VLC video source initialisation sleep to 1000 ms due to issue #144"
Revert "Issue #85: increased the VLC video source initialisation sleep to 1000 ms due to issue #144"

This reverts commit a1bd98560e67949c5e8aa3a032a07ac601742607.

gift-surg/GIFT-Grab,gift-surg/GIFT-Grab,gift-surg/GIFT-Grab,gift-surg/GIFT-Grab