refactor: remove extension module

It will soon be replaced with a much better extension API interface.

BREAKING CHANGE: Importers must import definitions from their actual definition locations. The extension module no longer exists.

Author: sqs

src/extension/index.ts

@@ -1,4 +1,4 @@
-import { KeyPath } from '../extension'
+import { KeyPath } from './configuration'
 
 /** Partial contribution-related client capabilities. */
 export interface ContributionClientCapabilities {

src/index.ts

@@ -1,7 +1,7 @@
-import { ConfigurationCascade } from '../extension'
 import { NotificationType, RequestType } from '../jsonrpc2/messages'
 import { URI } from '../types/textDocument'
 import { ClientCapabilities, ServerCapabilities } from './capabilities'
+import { ConfigurationCascade } from './configuration'
 import { WorkspaceFoldersInitializeParams } from './workspaceFolder'
 
 /**