[BUGFIX] remove console.log in pagetree actions.js

Simply removes the console.log debugging output. This line causes
JavaScript errors if there is no console object present.

Change-Id: I060b96f47b95d4265899ccff027009fe54f565cb
Resolves: #25721
Releases: 4.6, 4.5
Reviewed-on: http://review.typo3.org/1584
Reviewed-by: Oliver Hader
Tested-by: Oliver Hader