comms:http:client: Fix possible segfault

Do not destroy/release curl's resources inside its own callback.

It was calling call_connection_finish_cb() (that calls
destroy_connection()) inside the curl's progress callback for that connection.

Signed-off-by: Flavio Ceolin <flavio.ceolin@intel.com>

src/lib/comms/sol-http-client-impl-curl.c

@@ -398,9 +398,6 @@ xferinfo_cb(void *clientp, curl_off_t dltotal, curl_off_t dlnow,
         return 1;
     }
 
-    if (dltotal && dltotal == dlnow)
-        call_connection_finish_cb(connection);
-
     return 0;
 }