Remove duplicate blank lines at the start of some extension src files

extensions/css-language-features/server/src/cssServerMain.ts

@@ -3,8 +3,6 @@
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
 
-
-
 import {
 	createConnection, IConnection, TextDocuments, InitializeParams, InitializeResult, ServerCapabilities, ConfigurationRequest, WorkspaceFolder
 } from 'vscode-languageserver';