When using RMB selection and RMB-click-drag from a track border it
did not initiate translation of the track.
This i because the selection operator does not return PASSTHROUGH
for such selection. The code which was responsible for this has
been ported from the tools branch to minimize the code difference,
but it is not possible to detect condition under which the new
operator behavior is needed without modifying the keymap.
Simple solution: remove the code which was doing the wrong
assumption in the main branch.
Ref #119773
Pull Request: https://projects.blender.org/blender/blender/pulls/120940
048c7da4e9