chore: remove LionCC sponsor and presets

- Remove LionCC sponsor entry from all README files (en/zh/ja)
- Remove LionCCAPI presets from all provider configs
- Remove lionccapi i18n keys from all locales
- Keep lioncc.png icon file as requested

src/config/openclawProviderPresets.ts

@@ -1901,50 +1901,6 @@ export const openclawProviderPresets: OpenClawProviderPreset[] = [
       },
     },
   },
-  {
-    name: "LionCCAPI",
-    websiteUrl: "https://vibecodingapi.ai",
-    settingsConfig: {
-      baseUrl: "https://vibecodingapi.ai",
-      apiKey: "",
-      api: "anthropic-messages",
-      models: [
-        {
-          id: "claude-opus-4-7",
-          name: "Claude Opus 4.7",
-          contextWindow: 1000000,
-          cost: { input: 5, output: 25 },
-        },
-        {
-          id: "claude-sonnet-4-6",
-          name: "Claude Sonnet 4.6",
-          contextWindow: 1000000,
-          cost: { input: 3, output: 15 },
-        },
-      ],
-    },
-    category: "third_party",
-    isPartner: true,
-    partnerPromotionKey: "lionccapi",
-    icon: "lioncc",
-    templateValues: {
-      apiKey: {
-        label: "API Key",
-        placeholder: "",
-        editorValue: "",
-      },
-    },
-    suggestedDefaults: {
-      model: {
-        primary: "lionccapi/claude-opus-4-7",
-        fallbacks: ["lionccapi/claude-sonnet-4-6"],
-      },
-      modelCatalog: {
-        "lionccapi/claude-opus-4-7": { alias: "Opus" },
-        "lionccapi/claude-sonnet-4-6": { alias: "Sonnet" },
-      },
-    },
-  },
   {
     name: "E-FlowCode",
     websiteUrl: "https://e-flowcode.cc",