doc: remove superfluous word from crypto doc

PR-URL: https://github.com/nodejs/node/pull/19946
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: Anatoli Papirovski <apapirovski@mac.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Vse Mozhet Byt <vsemozhetbyt@gmail.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>

doc/api/crypto.md

@@ -233,9 +233,8 @@ added: v0.1.94
 -->
 - `outputEncoding` {string}
 - Returns: {Buffer | string} Any remaining enciphered contents.
-  If `outputEncoding` parameter is one of `'latin1'`, `'base64'` or `'hex'`,
-  a string is returned. If an `outputEncoding` is not provided, a [`Buffer`][]
-  is returned.
+  If `outputEncoding` is one of `'latin1'`, `'base64'` or `'hex'`, a string is
+  returned. If an `outputEncoding` is not provided, a [`Buffer`][] is returned.
 
 Once the `cipher.final()` method has been called, the `Cipher` object can no
 longer be used to encrypt data. Attempts to call `cipher.final()` more than
@@ -392,9 +391,8 @@ added: v0.1.94
 -->
 - `outputEncoding` {string}
 - Returns: {Buffer | string} Any remaining deciphered contents.
-  If `outputEncoding` parameter is one of `'latin1'`, `'ascii'` or `'utf8'`,
-  a string is returned. If an `outputEncoding` is not provided, a [`Buffer`][]
-  is returned.
+  If `outputEncoding` is one of `'latin1'`, `'ascii'` or `'utf8'`, a string is
+  returned. If an `outputEncoding` is not provided, a [`Buffer`][] is returned.
 
 Once the `decipher.final()` method has been called, the `Decipher` object can
 no longer be used to decrypt data. Attempts to call `decipher.final()` more