Revert "tty: make _read throw ERR_TTY_WRITABLE_NOT_READABLE"

This reverts commit 91eec00.

Refs: nodejs#21654
Refs: nodejs#21203

doc/api/errors.md

@@ -1713,12 +1713,6 @@ A `Transform` stream finished with data still in the write buffer.
 
 The initialization of a TTY failed due to a system error.
 
-<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')`.
-
 <a id="ERR_UNCAUGHT_EXCEPTION_CAPTURE_ALREADY_SET"></a>
 ### ERR_UNCAUGHT_EXCEPTION_CAPTURE_ALREADY_SET
 

lib/internal/errors.js

@@ -846,9 +846,6 @@ E('ERR_TRANSFORM_ALREADY_TRANSFORMING',
 E('ERR_TRANSFORM_WITH_LENGTH_0',
   'Calling transform done when writableState.length != 0', Error);
 E('ERR_TTY_INIT_FAILED', 'TTY initialization failed', SystemError);
-E('ERR_TTY_WRITABLE_NOT_READABLE',
-  'The Writable side of a TTY is not Readable',
-  Error);
 E('ERR_UNCAUGHT_EXCEPTION_CAPTURE_ALREADY_SET',
   '`process.setupUncaughtExceptionCapture()` was called while a capture ' +
     'callback was already active',

lib/tty.js

@@ -26,11 +26,7 @@ const net = require('net');
 const { internalBinding } = require('internal/bootstrap/loaders');
 const { TTY, isTTY } = internalBinding('tty_wrap');
 const errors = require('internal/errors');
-const {
-  ERR_INVALID_FD,
-  ERR_TTY_INIT_FAILED,
-  ERR_TTY_WRITABLE_NOT_READABLE
-} = errors.codes;
+const { ERR_INVALID_FD, ERR_TTY_INIT_FAILED } = errors.codes;
 const { getColorDepth } = require('internal/tty');
 
 // Lazy loaded for startup performance.
@@ -132,13 +128,6 @@ WriteStream.prototype._refreshSize = function() {
   }
 };
 
-// A WriteStream is not readable from, so _read become a no-op.
-// this method could still be called because net.Socket()
-// is a duplex
-WriteStream.prototype._read = function() {
-  this.destroy(new ERR_TTY_WRITABLE_NOT_READABLE());
-};
-
 // Backwards-compat
 WriteStream.prototype.cursorTo = function(x, y) {
   if (readline === undefined) readline = require('readline');