remove support for go-langserver

Author: stamblerre

src/goLanguageServer.ts

@@ -327,7 +327,7 @@ Please set "gopls" instead, and then reload the VS Code window.`);
 
 	// Installation of gopls and go-langserver is supported.
 	// Other language servers must be installed manually.
-	if (languageServerOfChoice !== 'gopls' && languageServerOfChoice !== 'go-langserver') {
+	if (languageServerOfChoice !== 'gopls') {
 		vscode.window.showErrorMessage(
 			`Cannot find the language server ${languageServerOfChoice}. Please install it and reload this VS Code window.`
 		);

src/goTools.ts

@@ -124,11 +124,7 @@ export function getConfiguredTools(goVersion: GoVersion): Tool[] {
 	// Add the language server for Go versions > 1.10 if user has choosen to do so.
 	// Respect the go.alternateTools setting.
 	if (goConfig['useLanguageServer'] && goVersion.gt('1.10')) {
-		if (goConfig['alternateTools']['gopls']) {
-			maybeAddTool(goConfig['alternateTools']['gopls']);
-		} else {
-			maybeAddTool('gopls');
-		}
+		maybeAddTool('gopls');
 	}
 
 	if (goLiveErrorsEnabled()) {