[TASK] Remove superfluous parenthesis in sysexts

Removes superfluous parenthesis in sysexts "info_pagetsconfig",
"install", "integrity" and "lang".

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

Change-Id: I367b1bef893de93964b41d900f29e2dfcedb8aaf
Resolves: #40967
Related: #40095
Reviewed-on: http://review.typo3.org/14626
Reviewed-by: Wouter Wolters
Tested-by: Wouter Wolters
Reviewed-by: Jigal van Hemert
Tested-by: Jigal van Hemert