Remove unnecessary eslint config file (#19015)

packages/vscode-ide-companion/eslint.config.mjs

@@ -1,50 +0,0 @@
-/**
- * @license
- * Copyright 2025 Google LLC
- * SPDX-License-Identifier: Apache-2.0
- */
-
-import typescriptEslint from '@typescript-eslint/eslint-plugin';
-import tsParser from '@typescript-eslint/parser';
-
-export default [
-  {
-    files: ['**/*.ts'],
-    plugins: {
-      '@typescript-eslint': typescriptEslint,
-    },
-
-    languageOptions: {
-      parser: tsParser,
-      ecmaVersion: 2022,
-      sourceType: 'module',
-      parserOptions: {
-        project: './tsconfig.json',
-        tsconfigRootDir: import.meta.dirname,
-      },
-    },
-
-    rules: {
-      '@typescript-eslint/naming-convention': [
-        'warn',
-        {
-          selector: 'import',
-          format: ['camelCase', 'PascalCase'],
-        },
-      ],
-
-      curly: 'warn',
-      eqeqeq: 'warn',
-      'no-throw-literal': 'warn',
-      semi: 'warn',
-      '@typescript-eslint/no-floating-promises': ['error'],
-      '@typescript-eslint/no-unsafe-type-assertion': 'error',
-    },
-  },
-  {
-    files: ['**/*.test.ts'],
-    rules: {
-      '@typescript-eslint/no-unsafe-type-assertion': 'off',
-    },
-  },
-];