[FEATURE] Remove noBlur code

remove the old and ugly noBlur javascript stuff in menu rendering

Change-Id: Ifd4ca7bcb11058b0b4610cc9c3aa5f1dd15d8118
Resolves: #35827
Releases: 6.0
Reviewed-on: http://review.typo3.org/10504
Reviewed-by: Georg Ringer
Tested-by: Georg Ringer
Reviewed-by: Kilian Hann
Reviewed-by: Markus Klein
Tested-by: Markus Klein
Reviewed-by: Oliver Klee
Reviewed-by: Stefan Neufeind
Reviewed-by: Christian Kuhn
Tested-by: Christian Kuhn