Remove TODO

...Unfortunately, after a little bit of testing and a lot more thought and consideration, I've realized there really isn't a way to do this without doubling the allocation. Ouch.

src/lime/_internal/backend/native/NativeHTTPRequest.hx

@@ -362,11 +362,6 @@ class NativeHTTPRequest
 		return promise.future;
 	}
 	
-	//TODO: BytesBuffer provides relief from the slowdown we were facing with the prior implementation of the "growBuffer" method that
-	//existed previously. While this is now solved, we still face the issue of excess memory usage by a factor of 2 in relation to
-	//the total total file size, meaning a file with the size of 2GB, requires 4GB of RAM to put together succcessfully. To solve this, 
-	//we essentially create our own similar BytesBuffer type that will build the final allocation in smaller increments that reduce the 
-	//total memory footprint to a small fraction of this. For reference, search for the "NativeHTTPRequest" thread in OpenFL Discord > Lime.
 	private function buildBuffer()	{
 		bytes = buffer.getBytes();
 		return bytes;