The famous announcement was in regard to permitting unrestricted travel (for a supposedly limited time window). Nothing was said about dismantling the wall (at the time or at any point in the future).
The "dismantling" itself (which at the outset was more like vandalism and souvenir-grabbing) started happening spontaneously after crowds began to overwhelm the border crossing, and the ensuing carnival atmosphere took over.
The "dismantling" itself (which at the outset was more like vandalism and souvenir-grabbing) started happening spontaneously after crowds began to overwhelm the border crossing, and the ensuing carnival atmosphere took over.