revert(tray): revert per-group latency testing (#8173)

This reverts commit cb751052a4.

Remove the tray latency test and its dashboard URL persistence and cache
changes because the two entry points have diverging behavior.

Preserve the subsequent IPC binding migration and remove generated fields,
input projections, and locale entries that depended on the reverted feature.

src/components/proxy/proxy-groups.tsx

@@ -23,9 +23,7 @@ import { useProfiles } from '@/hooks/use-profiles'
 import { useProxySelection } from '@/hooks/use-proxy-selection'
 import { useVerge } from '@/hooks/use-verge'
 import { useProxiesData, useSystemData } from '@/providers/app-data-context'
-import { syncTrayProxySelection } from '@/services/cmds'
 import delayManager from '@/services/delay'
-import { mutate } from '@/services/mutate'
 import {
   isInteractableMember,
   resolveMember,
@@ -145,12 +143,6 @@ function useProxyRenderState(
         console.error(`[ProxyGroups] 延迟测试出错，组: ${groupName}`, error)
       } finally {
         onProxies()
-        mutate(() => syncTrayProxySelection(), {
-          id: 'sync-tray-selection',
-          errorNotice: false,
-        }).catch((error) => {
-          console.error('[ProxyGroups] Failed to sync tray latency:', error)
-        })
       }
     }),
   )