Get rid of org.apache.http.legacy

[MasterEmit]

We are using at the moment Apache Android HttpClient 4.3.5.1. Sadly we still need useLibrary 'org.apache.http.legacy' to be able to build.

We need HttpComponentsStreamingClientHttpRequest - otherwise we would switch to okHttpClient.

If we remove legacy apache library and add in addition "org.apache.httpcomponents:core:4.3.3", then we get compile errors for following code:

private void setTemplateRequestFactory(RestTemplate template, CloseableHttpClient httpClient, boolean isSupportLargeRequests) {
        HttpComponentsClientHttpRequestFactory requestFactory = new HttpComponentsClientHttpRequestFactory(httpClient);
        requestFactory.setBufferRequestBody(!isSupportLargeRequests);
        template.setRequestFactory(requestFactory);
    }

The constructor of HttpComponentsClientHttpRequestFactory needs HttpClient - which is just available inside legacy apache http client. Would it be possible to remove this dependency?