doc: remove errors that were never released

Refs: nodejs#33764 (comment)

Author: Trott

doc/api/errors.md

@@ -2631,78 +2631,6 @@ removed: v10.0.0
 Used when an attempt is made to use a `zlib` object after it has already been
 closed.
 
-### Other error codes
-
-These errors have never been released, but had been present on master between
-releases.
-
-<a id="ERR_ENTRY_TYPE_MISMATCH"></a>
-#### `ERR_ENTRY_TYPE_MISMATCH`
-
-The `--entry-type=commonjs` flag was used to attempt to execute an `.mjs` file
-or a `.js` file where the nearest parent `package.json` contains
-`"type": "module"`; or
-the `--entry-type=module` flag was used to attempt to execute a `.cjs` file or
-a `.js` file where the nearest parent `package.json` either lacks a `"type"`
-field or contains `"type": "commonjs"`.
-
-<a id="ERR_FS_WATCHER_ALREADY_STARTED"></a>
-#### `ERR_FS_WATCHER_ALREADY_STARTED`
-
-An attempt was made to start a watcher returned by `fs.watch()` that has
-already been started.
-
-<a id="ERR_FS_WATCHER_NOT_STARTED"></a>
-#### `ERR_FS_WATCHER_NOT_STARTED`
-
-An attempt was made to initiate operations on a watcher returned by
-`fs.watch()` that has not yet been started.
-
-<a id="ERR_HTTP2_ALREADY_SHUTDOWN"></a>
-#### `ERR_HTTP2_ALREADY_SHUTDOWN`
-
-Occurs with multiple attempts to shutdown an HTTP/2 session.
-
-<a id="ERR_HTTP2_ERROR"></a>
-#### `ERR_HTTP2_ERROR`
-
-A non-specific HTTP/2 error has occurred.
-
-<a id="ERR_INVALID_REPL_HISTORY"></a>
-#### `ERR_INVALID_REPL_HISTORY`
-
-Used in the `repl` in case the old history file is used and an error occurred
-while trying to read and parse it.
-
-<a id="ERR_INVALID_REPL_TYPE"></a>
-#### `ERR_INVALID_REPL_TYPE`
-
-The `--entry-type=...` flag is not compatible with the Node.js REPL.
-
-<a id="ERR_STREAM_HAS_STRINGDECODER"></a>
-#### `ERR_STREAM_HAS_STRINGDECODER`
-
-Used to prevent an abort if a string decoder was set on the Socket.
-
-```js
-const Socket = require('net').Socket;
-const instance = new Socket();
-
-instance.setEncoding('utf8');
-```
-
-<a id="ERR_STRING_TOO_LARGE"></a>
-#### `ERR_STRING_TOO_LARGE`
-
-An attempt has been made to create a string larger than the maximum allowed
-size.
-
-<a id="ERR_TTY_WRITABLE_NOT_READABLE"></a>
-#### `ERR_TTY_WRITABLE_NOT_READABLE`
-
-This `Error` is thrown when a read is attempted on a TTY `WriteStream`,
-such as `process.stdout.on('data')`.
-
 [`'uncaughtException'`]: process.html#process_event_uncaughtexception
 [`--disable-proto=throw`]: cli.html#cli_disable_proto_mode
 [`--force-fips`]: cli.html#cli_force_fips