Remove unused functions in ts extension

extensions/typescript/src/typescriptServiceClient.ts

@@ -365,9 +365,9 @@ export default class TypeScriptServiceClient implements ITypescriptServiceClient
 				if (this.apiVersion.has230Features()) {
 					if (this.plugins.length) {
 						args.push('--globalPlugins', this.plugins.map(x => x.name).join(','));
-						//	if (currentVersion.path === this.versionProvider.defaultVersion.path) {
-						args.push('--pluginProbeLocations', this.plugins.map(x => x.path).join(','));
-						//	}
+						if (currentVersion.path === this.versionProvider.defaultVersion.path) {
+							args.push('--pluginProbeLocations', this.plugins.map(x => x.path).join(','));
+						}
 					}
 				}
 

extensions/typescript/src/utils/api.ts

@@ -16,7 +16,7 @@ export default class API {
 			return new API(localize('invalidVersion', 'invalid version'), '1.0.0');
 		}
 
-		// Cut of any prerelease tag since we sometimes consume those on purpose.
+		// Cut off any prerelease tag since we sometimes consume those on purpose.
 		const index = versionString.indexOf('-');
 		if (index >= 0) {
 			version = version.substr(0, index);
@@ -29,7 +29,6 @@ export default class API {
 		private readonly version: string
 	) { }
 
-
 	public has203Features(): boolean {
 		return semver.gte(this.version, '2.0.3');
 	}

extensions/typescript/src/utils/async.ts

@@ -53,27 +53,6 @@ export class Delayer<T> {
 		return this.completionPromise;
 	}
 
-	public forceDelivery(): Promise<T | null> | null {
-		if (!this.completionPromise) {
-			return null;
-		}
-		this.cancelTimeout();
-		let result = this.completionPromise;
-		if (this.onSuccess) {
-			this.onSuccess(undefined);
-		}
-		return result;
-	}
-
-	public isTriggered(): boolean {
-		return this.timeout !== null;
-	}
-
-	public cancel(): void {
-		this.cancelTimeout();
-		this.completionPromise = null;
-	}
-
 	private cancelTimeout(): void {
 		if (this.timeout !== null) {
 			clearTimeout(this.timeout);