[CLEANUP] Use AbstractViewHelper class alias and fix some obsolete alias references

Change-Id: Ia9d6fee77458e0843a4af73d14b8f9ec29aeebc1
Release: 3.0
Resolves: #61104
Reviewed-on: http://review.typo3.org/32283
Reviewed-by: Fabien Udriot <fabien.udriot@ecodev.ch>
Tested-by: Fabien Udriot <fabien.udriot@ecodev.ch>