Remove automatic linting from build (#83136)
### What?
This PR removes the automatic ESLint linting that previously ran during `next build`. The documentation has been updated to reflect this change.
### Why?
As part of Next.js 16, we're removing the automatic build-time linting that was previously included in the build process. This gives developers more control over when linting runs by explicitly invoking their linter via npm scripts.
### How?
- Updated documentation to clarify that automatic build-time linting has been removed in Next.js 16
- Removed the `runLint` parameter and related linting code from the build process
- Removed the `verifyAndLint.ts` file which is no longer needed
- Simplified type checking code by removing lint-related functionality
- Removed ESLint telemetry during builds
