doc: fix wrong history entry in deepStrictEqual

PR-URL: nodejs/node#15381
Fixes: nodejs/node#15379
Reviewed-By: Luigi Pinca <[email protected]>
Reviewed-By: James M Snell <[email protected]>
Reviewed-By: Ruben Bridgewater <[email protected]>

Author: hisener

doc/api/assert.md

@@ -112,8 +112,6 @@ changes:
   - version: REPLACEME
     pr-url: https://github.com/nodejs/node/pull/15036
     description: NaN is now compared using the [SameValueZero][] comparison.
-  - version: REPLACEME
-    pr-url: https://github.com/nodejs/node/pull/15001
   - version: v8.5.0
     pr-url: https://github.com/nodejs/node/pull/15001
     description: Error names and messages are now properly compared