chore: remove useless tsconfigs

tsconfig.apis.json

@@ -1,3 +0,0 @@
-{
-  "extends": "./tsconfig.base.json"
-}

tsconfig.base.json

@@ -1,17 +0,0 @@
-{
-  // `bun-types` will not be added until https://github.com/oven-sh/bun/issues/7247 is fixed
-  "extends": ["@tsconfig/strictest" /* "bun-types" */],
-  "compilerOptions": {
-    "lib": ["ESNext"],
-    "module": "NodeNext",
-    "moduleResolution": "Bundler",
-    "target": "ESNext",
-    "skipLibCheck": true,
-    "skipDefaultLibCheck": true,
-    "resolveJsonModule": true,
-    "esModuleInterop": true,
-    "declaration": false,
-    "allowSyntheticDefaultImports": true,
-    "isolatedModules": true
-  }
-}