Remove parentOriginHash checko

This fixes webviews from not working properly due to a change upstream.
Upstream added a check to ensure parent authority is encoded into the webview
origin. Since our webview origin is the parent authority, we can bypass this
check.

Index: code-server/lib/vscode/src/vs/workbench/contrib/webview/browser/pre/main.js
===================================================================
--- code-server.orig/lib/vscode/src/vs/workbench/contrib/webview/browser/pre/main.js
+++ code-server/lib/vscode/src/vs/workbench/contrib/webview/browser/pre/main.js
@@ -339,12 +339,7 @@ const hostMessaging = new class HostMess
 			throw err instanceof Error ? err : new Error(String(err));
 		}
 
-		if (hostname === parentOriginHash || hostname.startsWith(parentOriginHash + '.')) {
-			// validation succeeded!
-			return start(parentOrigin);
-		}
-
-		throw new Error(`Expected '${parentOriginHash}' as hostname or subdomain!`);
+		return start(parentOrigin);
 	}
 }();