Remove logging from scheduler.c (moved to io-event worker_pool.c)

Co-authored-by: Cursor <cursoragent@cursor.com>

Author: samuel-williams-shopify

scheduler.c

@@ -211,7 +211,6 @@ rb_fiber_scheduler_blocking_operation_execute(rb_fiber_scheduler_blocking_operat
     }
 
     // Now we're executing - call the function
-    fprintf(stderr, "[blocking_operation] execute: op=%p state=%p\n", (void*)blocking_operation, (void*)blocking_operation->state);
     blocking_operation->state->result = blocking_operation->function(blocking_operation->data);
     blocking_operation->state->saved_errno = errno;
 
@@ -1107,18 +1106,11 @@ VALUE rb_fiber_scheduler_blocking_operation_wait(VALUE scheduler, void* (*functi
     VALUE blocking_operation = rb_fiber_scheduler_blocking_operation_new(function, data, unblock_function, data2, flags, state);
 
     rb_fiber_scheduler_blocking_operation_t *operation = get_blocking_operation(blocking_operation);
-    fprintf(stderr, "[blocking_operation] wait: op=%p state=%p\n", (void*)operation, (void*)state);
 
     int tag = 0;
     VALUE call_args[2] = {scheduler, blocking_operation};
     VALUE result = rb_protect(scheduler_blocking_operation_wait_call, (VALUE)call_args, &tag);
 
-    if (tag) {
-        // Exception from blocking_operation_wait: cleanup still runs below,
-        // but log this so we can detect when a stale state pointer is later accessed.
-        fprintf(stderr, "[blocking_operation] wait exception: op=%p state=%p (now dangling!)\n", (void*)operation, (void*)state);
-    }
-
     // Get fresh operation pointer after rb_protect (GC may have run)
     operation = get_blocking_operation(blocking_operation);
     // Get the operation data to check if it was executed
@@ -1235,7 +1227,6 @@ rb_fiber_scheduler_blocking_operation_cancel(rb_fiber_scheduler_blocking_operati
 
         case RB_FIBER_SCHEDULER_BLOCKING_OPERATION_STATUS_EXECUTING:
             // Work is running - mark cancelled AND call unblock function
-            fprintf(stderr, "[blocking_operation] cancel(executing): op=%p state=%p\n", (void*)blocking_operation, (void*)blocking_operation->state);
             if (RUBY_ATOMIC_CAS(blocking_operation->status, current_state, RB_FIBER_SCHEDULER_BLOCKING_OPERATION_STATUS_CANCELLED) != current_state) {
                 // State changed between load and CAS - operation may have completed:
                 return 0;