Delete calibre (#1362)

* Delete ct/calibre-server.sh

* Delete json/calibre-server.json

* Delete install/calibre-server-install.sh

json/calibre-server.json

@@ -1,43 +0,0 @@
-{
-    "name": "Calibre-Server",
-    "slug": "calibre-server",
-    "categories": [
-      12
-    ],
-    "date_created": "2025-01-09",
-    "type": "ct",
-    "updateable": true,
-    "privileged": false,
-    "interface_port": 8180,
-    "documentation": null,
-    "website": "https://calibre-ebook.com",
-    "logo": "https://calibre-ebook.com/resources/icons/calibre_icon.png",
-    "description": "Calibre content server is used to manage and serve eBooks over the network.",
-    "install_methods": [
-      {
-        "type": "default",
-        "script": "ct/calibre-server.sh",
-        "resources": {
-          "cpu": 2,
-          "ram": 1024,
-          "hdd": 4,
-          "os": "debian",
-          "version": "12"
-        }
-      }
-    ],
-    "default_credentials": {
-      "username": null,
-      "password": null
-    },
-    "notes": [
-      {
-        "text": "By default, the Calibre Server runs on port 8180 with no username/password.",
-        "type": "info"
-      },
-      {
-        "text": "Use 'calibredb add' from the calibre user or run 'xvfb-run calibredb add ...' if you need to add books while the server is running.",
-        "type": "info"
-      }
-    ]
-  }