<?php

$url = [
	['url'=>'http://e...content-available-to-author-only...e.com','id'=>1],
	['url'=>'https://e...content-available-to-author-only...e.com','id'=>2],
	['url'=>'https://u...content-available-to-author-only...l.com','id'=>3],
	['url'=>'http://e...content-available-to-author-only...e.com','id'=>4],
	['url'=>'http://b...content-available-to-author-only...g.com','id'=>5],
	['url'=>'http://b...content-available-to-author-only...g.com','id'=>6],
	['url'=>'http://d...content-available-to-author-only...a.com','id'=>7],
	['url'=>'https://d...content-available-to-author-only...a.com','id'=>9],
	['url'=>'https://s...content-available-to-author-only...p.com','id'=>10],
	['url'=>'https://s...content-available-to-author-only...s.com','id'=>11],
];

$http_urls = [];
$https_urls = [];

// Отделяем url-ы с https от http
foreach ($url as $item) {
	if (preg_match('/^https/i', $item['url'])) {
		$https_urls[] = stripProto($item['url']);
	} else {
		$http_urls[] = stripProto($item['url']);
	}
}

// Находим одинаковые адреса в обоих массивах
$urls_itersect = array_intersect($http_urls, $https_urls);

// Оставляем в исходном массиве только url-ы с http, которые содержатся в массиве $urls_itersect
$url = array_filter($url, function($item) use ($urls_itersect) {
	if (preg_match('/^http[^s]/i', $item['url']) && in_array(stripProto($item['url']), $urls_itersect)) {
		return true;
	} else {
		return false;
	}
});

print_r($url);


// Возвращает url без протокола
function stripProto($url) {
	if (preg_match('/^https?(.+)$/i', $url, $m)) {
		return $m[1];
	}
}