TYPO3 Core

If you set a title attribute, the link cannot be processed as a typolink and will therefore receive a rtekeep=1 attribute.

In version 0.7.2 with Enable all editor options, a default class is assigned to the link. This class generates also a default title.

If you unset:

RTE.default.classesAnchor.default.page >

then there will be no class assigned to the internal link by default and, in particular, no title set by default.

Or, if you unset:

RTE.classesAnchor.internalLink.titleText >

then no default title will be set.