docs(router): remove incorrect deprecation text in `InitialNavigation` (#46916)
docs(router): remove incorrect deprecation text in `InitialNavigation` (#46916)

Remove left over deprecation note.

PR Close #46916

JiaLiPassion/angular,JiaLiPassion/angular,angular/angular,gkalpak/angular,gnomeontherun/angular,angular/angular,angular-indonesia/angular,gkalpak/angular,angular/angular,gnomeontherun/angular,gkalpak/angular,angular-indonesia/angular,JiaLiPassion/angular,JiaLiPassion/angular,angular-indonesia/angular,gnomeontherun/angular,gnomeontherun/angular,gkalpak/angular,angular/angular,angular-indonesia/angular