Sharing: revert changes to echo inline sharing js

Fixes #6640
Reverts changes introduced in #6339

`$service->display_footer()` includes calls to `js_dialog` when not using Jetpack's Official sharing buttons.
`js_dialog` often uses `wp_add_inline_script()`, thus recreating the issues described in #6640.

modules/sharedaddy/sharing-service.php

@@ -548,9 +548,6 @@ function sharing_add_footer() {
 		);
 		wp_localize_script( 'sharing-js', 'sharing_js_options', $sharing_js_options);
 	}
-}
-
-function sharing_add_footer_scripts_inline() {
 	$sharer = new Sharing_Service();
 	$enabled = $sharer->get_blog_services();
 	foreach ( array_merge( $enabled['visible'], $enabled['hidden'] ) AS $service ) {
@@ -779,9 +776,6 @@ function sharing_display( $text = '', $echo = false ) {
 
 			// Enqueue scripts for the footer
 			add_action( 'wp_footer', 'sharing_add_footer' );
-
-			// Print inline scripts that depend on jQuery
-			add_action( 'wp_footer', 'sharing_add_footer_scripts_inline', 25 );
 		}
 	}