docs(ngForm): remove duplicate @param annotation
docs(ngForm): remove duplicate @param annotation

When the example for `ngAnimate` was added in commit:3344396, the `@param name` annotation was unintentionally duplicated. Remove this duplicate.

Closes #6720

ggershoni/angular.js,ggershoni/angular.js,ggershoni/angular.js,ggershoni/angular.js