deps: updated openssl upgrade instructions

Patching the s390 asm rules is no longer required.

See: openssl/openssl#8351

PR-URL: #28211
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Ujjwal Sharma <usharma1998@gmail.com>
Reviewed-By: Shigeki Ohtsu <ohtsu@ohtsu.org>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>

deps/openssl/config/README.md

@@ -50,49 +50,15 @@ This updates all sources in deps/openssl/openssl by:
     $ git commit openssl
 ```
 
-### 2. Apply a floating patch
-
-Currently, one floating patch is needed to build S390 asm files:
-```
-Author: Shigeki Ohtsu <ohtsu@ohtsu.org>
-Date:   Wed Mar 7 23:52:52 2018 +0900
-
-    deps: add s390 asm rules for OpenSSL-1.1.0
-
-    This is a floating patch against OpenSSL-1.1.0 to generate asm files
-    with Makefile rules and it is to be submitted to the upstream.
-
-    Fixes: https://github.com/nodejs/node/issues/4270
-    PR-URL: https://github.com/nodejs/node/pull/19794
-    Reviewed-By: James M Snell <jasnell@gmail.com>
-    Reviewed-By: Rod Vagg <rod@vagg.org>
-    Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com>
-
- deps/openssl/openssl/crypto/poly1305/build.info | 2 ++
-```
-
-Find the SHA of the previous commit of this patch:
-```sh
-$ git log -n1 --oneline -- deps/openssl/openssl/crypto/poly1305/build.info
-```
-
-Using the SHA found in the previous step, cherry pick it from the previous
-commit (with the openssl version in the commit message set to the relevant
-value):
-```sh
-$ git cherry-pick 45b9f5df6ff1548f01ed646ebee75e3f0873cefd
-```
-
-
-### 3. Execute `make` in `deps/openssl/config` directory
+### 2. Execute `make` in `deps/openssl/config` directory
 
 Use `make` to regenerate all platform dependent files in
 `deps/openssl/config/archs/`:
 ```sh
 $ cd deps/openssl/config; make
 ```
 
-### 4. Check diffs
+### 3. Check diffs
 
 Check diffs if updates are right. Even if no updates in openssl
 sources, `buildinf.h` files will be updated for they have a timestamp
@@ -109,7 +75,7 @@ created. When source files or build options are updated in Windows,
 it needs to change these two Makefiles by hand. If you are not sure,
 please ask @shigeki for details.
 
-### 5. Commit and make test
+### 4. Commit and make test
 
 Update all architecture dependent files. Do not forget to git add or remove
 files if they are changed before commit: