remove fundingUrl from manifest

manifest.json

@@ -6,6 +6,6 @@
 	"description": "This is a simple wrapper for Obsidian-Tasks-Calendar (https://github.com/702573N/Obsidian-Tasks-Calendar) and Obsidian-Tasks-Timeline (https://github.com/702573N/Obsidian-Tasks-Timeline).",
 	"author": "zhuwenq",
 	"authorUrl": "https://github.com/Leonezz",
-	"fundingUrl": "https://obsidian.md/pricing",
+	"fundingUrl": "",
 	"isDesktopOnly": true
 }