FIXED: Skins work on Linux

There's still one more issue to this:
other peoples skins in multiplayer show corrupted.

src/platform/HttpClient.h

@@ -6,9 +6,6 @@
 
 namespace HttpClient {
 
-/// Download the given URL into "outBody".
-/// Returns true if the download completed successfully (HTTP 200) and the body is in outBody.
-/// This function supports plain HTTP only (no TLS). It will follow up to 3 redirects.
 bool download(const std::string& url, std::vector<unsigned char>& outBody);
 
 } // namespace HttpClient