chore: Revert "fix: processing events in contracts with no notes (#14528)"

noir-projects/aztec-nr/aztec/src/macros/functions/utils.nr

@@ -99,9 +99,7 @@ pub(crate) comptime fn transform_private(f: FunctionDefinition) -> Quoted {
     };
 
     // All private functions perform message discovery, since they may need to access notes. This is slightly
-    // inefficient and could be improved by only doing it once we actually attempt to read any. Note that the message
-    // discovery call syncs private events as well. We do not sync those here if there are no notes because we don't
-    // have an API that would access events from private functions.
+    // inefficient and could be improved by only doing it once we actually attempt to read any.
     let message_discovery_call = if NOTES.len() > 0 {
         create_message_discovery_call()
     } else {
@@ -305,9 +303,13 @@ pub(crate) comptime fn transform_utility(f: FunctionDefinition) -> Quoted {
     };
 
     // All utility functions perform message discovery, since they may need to access private notes that would be
-    // found during this process or they may be used to sync private events from TypeScript
-    // (`sync_private_state` function gets invoked by PXE::getPrivateEvents function).
-    let message_discovery_call = create_message_discovery_call();
+    // found during this process. This is slightly inefficient and could be improved by only doing it once we actually
+    // attempt to read any.
+    let message_discovery_call = if NOTES.len() > 0 {
+        create_message_discovery_call()
+    } else {
+        quote {}
+    };
 
     // Inject context creation, storage initialization, and message discovery call at the beginning of the function
     // body.

noir-projects/noir-contracts/Nargo.toml

@@ -38,7 +38,6 @@ members = [
     "contracts/test/benchmarking_contract",
     "contracts/test/child_contract",
     "contracts/test/counter_contract",
-    "contracts/test/event_only_contract",
     "contracts/test/import_test_contract",
     "contracts/test/invalid_account_contract",
     "contracts/test/no_constructor_contract",