core: Remove some more logs

The log in stream_aggregator can become very spammy with a small block
range

The log in monitor isn't really needed since surrounding code already logs
enough information

Author: lutter

core/src/amp_subgraph/monitor.rs

@@ -188,10 +188,6 @@ impl Monitor {
         loop {
             tokio::select! {
                 Some(command) = command_rx.recv() => {
-                    debug!(logger, "Processing a new command";
-                        "command" => ?command
-                    );
-
                     match &command {
                         Command::Start { .. } => {
                             Self::process_start_command(

graph/src/amp/stream_aggregator/mod.rs

@@ -101,11 +101,6 @@ impl StreamAggregator {
 
         let num_streams = named_streams.len();
 
-        info!(logger, "Initializing stream aggregator";
-            "num_streams" => num_streams,
-            "max_buffer_size" => max_buffer_size
-        );
-
         Self {
             named_streams,
             buffer: Buffer::new(num_streams, max_buffer_size),