refactor(presets): drop redundant 'OpenAI Compatible' preset

Remove the 'OpenAI Compatible' custom-template preset from the OpenCode
and OpenClaw preset lists. It was a duplicate entry point: the built-in
'custom' provider flow already exposes an interface-format selector whose
default (@ai-sdk/openai-compatible / openai-completions) produces a
byte-identical starting config. Having both left two list items pointing
to the same place.

Existing providers are unaffected — presets only seed form defaults on
creation; saved providers store concrete npm/baseUrl/apiKey/models values.

The '@ai-sdk/openai-compatible' dropdown label is intentionally kept; it
is the format option users pick in the custom flow, not the deleted preset.

src/config/openclawProviderPresets.ts

@@ -2500,32 +2500,4 @@ export const openclawProviderPresets: OpenClawProviderPreset[] = [
     icon: "aws",
     iconColor: "#FF9900",
   },
-
-  // ========== Custom Template ==========
-  {
-    name: "OpenAI Compatible",
-    websiteUrl: "",
-    settingsConfig: {
-      baseUrl: "",
-      apiKey: "",
-      api: "openai-completions",
-      models: [],
-    },
-    category: "custom",
-    isCustomTemplate: true,
-    icon: "generic",
-    iconColor: "#6B7280",
-    templateValues: {
-      baseUrl: {
-        label: "Base URL",
-        placeholder: "https://api.example.com/v1",
-        editorValue: "",
-      },
-      apiKey: {
-        label: "API Key",
-        placeholder: "",
-        editorValue: "",
-      },
-    },
-  },
 ];

src/config/opencodeProviderPresets.ts

@@ -2019,36 +2019,6 @@ export const opencodeProviderPresets: OpenCodeProviderPreset[] = [
       },
     },
   },
-  {
-    name: "OpenAI Compatible",
-    websiteUrl: "",
-    settingsConfig: {
-      npm: "@ai-sdk/openai-compatible",
-      options: {
-        baseURL: "",
-        apiKey: "",
-        setCacheKey: true,
-      },
-      models: {},
-    },
-    category: "custom",
-    isCustomTemplate: true,
-    icon: "generic",
-    iconColor: "#6B7280",
-    templateValues: {
-      baseURL: {
-        label: "Base URL",
-        placeholder: "https://api.example.com/v1",
-        editorValue: "",
-      },
-      apiKey: {
-        label: "API Key",
-        placeholder: "",
-        editorValue: "",
-      },
-    },
-  },
-
   {
     name: "Oh My OpenCode",
     websiteUrl: "https://github.com/code-yeongyu/oh-my-openagent",