docs(http): fix copy-paste error in HttpClientJsonpModule docs (#47502)
docs(http): fix copy-paste error in HttpClientJsonpModule docs (#47502)

This commit deletes a sentence from the `HttpClientJsonpModule` docs which
was accidentally copy-pasted from the docs for another symbol.

PR Close #47502

gnomeontherun/angular,angular-indonesia/angular,angular-indonesia/angular,gnomeontherun/angular,angular-indonesia/angular,angular/angular,angular/angular,gnomeontherun/angular,gnomeontherun/angular,angular/angular,angular/angular,angular-indonesia/angular