Revert "issue-1: added drag and drop to main screen for logfiles."
Revert "issue-1: added drag and drop to main screen for logfiles."

This reverts commit ba0fae5ffd60f8c65e5a5eeb0624d63f1ff05108.
MGetmanov/tda,irockel/tda,MGetmanov/tda,irockel/tda,irockel/tda,MGetmanov/tda