[FL-2203] Fix CLI RPC stall (#961)

* [FL-2203] Fix CLI RPC stall

applications/rpc/rpc_cli.c

@@ -50,8 +50,9 @@ void rpc_cli_command_start_session(Cli* cli, string_t args, void* context) {
         }
 
         if(size_received) {
-            furi_assert(
-                rpc_session_feed(rpc_session, buffer, size_received, 3000) == size_received);
+            size_t fed_bytes = rpc_session_feed(rpc_session, buffer, size_received, 3000);
+            (void)fed_bytes;
+            furi_assert(fed_bytes == size_received);
         }
     }