BREAKING(dts): improve types for Deno.serve (#25369)

This significantly simplifies the types for `Deno.serve`.

The following types become generic over the address type:
- ServeHandlerInfo
- ServeHandler
- ServeOptions
- ServeInit

The following types are removed entirely:
- ServeTlsOptions
- ServeUnixOptions
- ServeUnixHandlerInfo
- ServeUnixHandler

cli/tsc/dts/lib.deno.unstable.d.ts

@@ -10,18 +10,6 @@
 declare namespace Deno {
   export {}; // stop default export type behavior
 
-  /** Information for a HTTP request.
-   *
-   * @category HTTP Server
-   * @experimental
-   */
-  export interface ServeHandlerInfo {
-    /** The remote address of the connection. */
-    remoteAddr: Deno.NetAddr;
-    /** The completion promise */
-    completed: Promise<void>;
-  }
-
   /** **UNSTABLE**: New API, yet to be vetted.
    *
    * Retrieve the process umask.  If `mask` is provided, sets the process umask.