Removes superfluous parenthesis in sysexts "sv", "sys_action",
"sys_note" and "t3editor".

Change ("a" . "b") . "c" into "a" . "b" . "c" using the lex-pass tool.

Change-Id: Ib4b3541051a30895d6657b6af367f9c6c58dac44
Resolves: #40971
Related: #40095
Reviewed-on: http://review.typo3.org/14630
Reviewed-by: Wouter Wolters
Tested-by: Wouter Wolters
Reviewed-by: Jigal van Hemert
Tested-by: Jigal van Hemert