doc: remove unused error codes from errors.md

This removes two unused error codes:
 * ERR_STREAM_READ_NOT_IMPLEMENTED, removed in c979488 (PR #18813).
 * ERR_VALUE_OUT_OF_RANGE, removed in d022cb1 (PR #17648).

PR-URL: #21491
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com>
Reviewed-By: Anatoli Papirovski <apapirovski@mac.com>

doc/api/errors.md

@@ -1569,12 +1569,6 @@ or a pipeline ends non gracefully with no explicit error.
 An attempt was made to call [`stream.push()`][] after a `null`(EOF) had been
 pushed to the stream.
 
-<a id="ERR_STREAM_READ_NOT_IMPLEMENTED"></a>
-### ERR_STREAM_READ_NOT_IMPLEMENTED
-
-An attempt was made to use a readable stream that did not implement
-[`readable._read()`][].
-
 <a id="ERR_STREAM_UNSHIFT_AFTER_END_EVENT"></a>
 ### ERR_STREAM_UNSHIFT_AFTER_END_EVENT
 
@@ -1777,11 +1771,6 @@ The V8 `BreakIterator` API was used but the full ICU data set is not installed.
 While using the Performance Timing API (`perf_hooks`), no valid performance
 entry types were found.
 
-<a id="ERR_VALUE_OUT_OF_RANGE"></a>
-### ERR_VALUE_OUT_OF_RANGE
-
-Superseded by `ERR_OUT_OF_RANGE`.
-
 <a id="ERR_VM_MODULE_ALREADY_LINKED"></a>
 ### ERR_VM_MODULE_ALREADY_LINKED
 
@@ -1874,7 +1863,6 @@ A module file could not be resolved while attempting a [`require()`][] or
 [`new URLSearchParams(iterable)`]: url.html#url_constructor_new_urlsearchparams_iterable
 [`process.send()`]: process.html#process_process_send_message_sendhandle_options_callback
 [`process.setUncaughtExceptionCaptureCallback()`]: process.html#process_process_setuncaughtexceptioncapturecallback_fn
-[`readable._read()`]: stream.html#stream_readable_read_size_1
 [`require()`]: modules.html#modules_require
 [`require('crypto').setEngine()`]: crypto.html#crypto_crypto_setengine_engine_flags
 [`server.listen()`]: net.html#net_server_listen