revert erroneous rebase changes

Author: W-A-James

src/cmap/connection_pool.ts

@@ -388,7 +388,6 @@ export class ConnectionPool extends TypedEventEmitter<ConnectionPoolEvents> {
       }
     } else {
       timeout = Timeout.expires(waitQueueTimeoutMS);
-      clearTimeout = true;
     }
 
     const waitQueueMember: WaitQueueMember = {

src/error.ts

@@ -768,15 +768,6 @@ export class MongoOperationTimeoutError extends MongoRuntimeError {
   }
 }
 
-/**
- * @internal
- */
-export class MongoOperationTimeoutError extends MongoRuntimeError {
-  override get name(): string {
-    return 'MongoOperationTimeoutError';
-  }
-}
-
 /**
  * An error thrown when the user attempts to add options to a cursor that has already been
  * initialized

src/operations/find.ts

@@ -112,7 +112,8 @@ export class FindOperation extends CommandOperation<Document> {
         ...this.options,
         ...this.bsonOptions,
         documentsReturnedIn: 'firstBatch',
-        sessiontimeout: this.timeout
+        session,
+        timeout: this.timeout
       },
       undefined
     );

src/operations/operation.ts

@@ -67,9 +67,6 @@ export abstract class AbstractOperation<TResult = any> {
   /** @internal */
   timeoutMS?: number;
 
-  /** @internal */
-  serverSelectionTimeout?: Timeout;
-
   [kSession]: ClientSession | undefined;
 
   constructor(options: OperationOptions = {}) {

src/sdam/topology.ts

@@ -565,7 +565,6 @@ export class Topology extends TypedEventEmitter<TopologyEvents> {
     }
     const serverSelectionTimeoutMS = options.serverSelectionTimeoutMS ?? 0;
     let timeout: Timeout | null;
-
     if (options.timeout) {
       // CSOT Enabled
       if (options.timeout.duration > 0 || serverSelectionTimeoutMS > 0) {
@@ -582,7 +581,6 @@ export class Topology extends TypedEventEmitter<TopologyEvents> {
       }
     } else {
       timeout = Timeout.expires(serverSelectionTimeoutMS);
-      clearTimeout = true;
     }
 
     const isSharded = this.description.type === TopologyType.Sharded;