Disable signature verification.

Extension signature verification is now mandatory for all platforms and needs to be disabled.

Index: code-server/lib/vscode/src/vs/platform/extensionManagement/node/extensionManagementService.ts
===================================================================
--- code-server.orig/lib/vscode/src/vs/platform/extensionManagement/node/extensionManagementService.ts
+++ code-server/lib/vscode/src/vs/platform/extensionManagement/node/extensionManagementService.ts
@@ -34,6 +34,7 @@ import {
        ExtensionSignatureVerificationCode,
        computeSize,
        IAllowedExtensionsService,
+       // @ts-expect-error no-unused-variable
        VerifyExtensionSignatureConfigKey,
        shouldRequireRepositorySignatureFor,
 } from '../common/extensionManagement.js';
@@ -87,6 +88,7 @@ export class ExtensionManagementService
                @IDownloadService private downloadService: IDownloadService,
                @IInstantiationService private readonly instantiationService: IInstantiationService,
                @IFileService private readonly fileService: IFileService,
+               // @ts-expect-error no-unused-variable
                @IConfigurationService private readonly configurationService: IConfigurationService,
                @IExtensionGalleryManifestService protected readonly extensionGalleryManifestService: IExtensionGalleryManifestService,
                @IProductService productService: IProductService,
@@ -331,8 +333,7 @@ export class ExtensionManagementService
 
        private async downloadExtension(extension: IGalleryExtension, operation: InstallOperation, verifySignature: boolean, clientTargetPlatform?: TargetPlatform): Promise<{ readonly location: URI; readonly verificationStatus: ExtensionSignatureVerificationCode | undefined }> {
                if (verifySignature) {
-                       const value = this.configurationService.getValue(VerifyExtensionSignatureConfigKey);
-                       verifySignature = isBoolean(value) ? value : true;
+                       verifySignature = false;
                }
                const { location, verificationStatus } = await this.extensionsDownloader.download(extension, operation, verifySignature, clientTargetPlatform);
                const shouldRequireSignature = shouldRequireRepositorySignatureFor(extension.private, await this.extensionGalleryManifestService.getExtensionGalleryManifest());