Remove CallKit from SDK Docs

Author: haoxiuwen

docs/.vuepress/sidebar/document.ts

@@ -168,15 +168,6 @@ const documentSidebar = [
     ],
     except: ['applet', 'server-side','electron','linux']
   },
-  {
-    text: 'CallKit 使用指南',
-    children: [
-      { text: 'EaseCallKit 使用指南', link: 'easecallkit.html', only: ['android', 'ios'] },
-      { text: 'CallKit 使用指南', link: 'easecallkit.html', only: ['web'] },
-    ],
-    except: ['applet', 'server-side','electron','linux']
-
-  },
   {
     text: '苹果隐私策略',
     children: [