perf: remove redundant files

Author: kyour-cn

.gitignore

@@ -1,3 +1,5 @@
 phpunit.xml
 test/server/node_modules
 vendor
+/.idea
+/composer.lock

Makefile

@@ -1,26 +1,7 @@
-# [ABANDONED] Guzzle JSON-RPC
-
-[![No Maintenance Intended](http://unmaintained.tech/badge.svg)](http://unmaintained.tech/)
+# Guzzle JSON-RPC
 
 ### This is no longer supported, please consider forking this repository to make any desired changes.
 
-[![Master branch build status][ico-build]][travis]
-[![Coverage Status][ico-coverage]][coverage]
-[![Quality Score][ico-quality]][quality]
-[![Published version][ico-package]][package]
-[![PHP ~5.5][ico-engine]][lang]
-[![MIT Licensed][ico-license]][license]
-
-This library implements [JSON-RPC 2.0][jsonrpc] for the Guzzle HTTP client. We
-try to support all commonly used versions of Guzzle including:
-
-- [GuzzleHTTP 6][guzzle] on [`master`][branch-master] branch, `^3.0` releases
-- [GuzzleHTTP 5][guzzle] on [`guzzle-5`][branch-5] branch, `^2.1` releases
-- [GuzzleHTTP 4][guzzle] on [`guzzle-4`][branch-4] branch, `2.0.*` releases
-- [Guzzle 3][guzzle-3] on [`guzzle-3`][branch-3] branch, `^1.0` releases
-
-It can be installed in whichever way you prefer, but we recommend [Composer][package].
-
 ```json
 {
     "require": {
@@ -54,9 +35,6 @@ $client->sendAll([
 
 ### Async requests
 
-Asynchronous requests are supported by making use of the
-[Guzzle Promises][guzzle-promise] library; an implementation of
-[Promises/A+][promise].
 
 ```php
 <?php
@@ -125,31 +103,3 @@ but passing unit tests must be included before it will be considered for merge.
 
 The content of this library is released under the **MIT License** by
 **Nature Delivered Ltd**.
-
-You can find a copy of this license at
-[mit][mit] or in [`LICENSE`][license]
-
-<!-- Links -->
-[mit]: http://www.opensource.org/licenses/mit
-[travis]: https://travis-ci.org/graze/guzzle-jsonrpc
-[lang]: http://php.net
-[package]: https://packagist.org/packages/graze/guzzle-jsonrpc
-[coverage]: https://scrutinizer-ci.com/g/graze/guzzle-jsonrpc/code-structure
-[quality]: https://scrutinizer-ci.com/g/graze/guzzle-jsonrpc
-[ico-license]: http://img.shields.io/packagist/l/graze/guzzle-jsonrpc.svg?style=flat
-[ico-package]: http://img.shields.io/packagist/v/graze/guzzle-jsonrpc.svg?style=flat
-[ico-build]: http://img.shields.io/travis/graze/guzzle-jsonrpc/master.svg?style=flat
-[ico-engine]: http://img.shields.io/badge/php-~5.5-8892BF.svg?style=flat
-[ico-coverage]: https://img.shields.io/scrutinizer/coverage/g/graze/guzzle-jsonrpc.svg?style=flat
-[ico-quality]: https://img.shields.io/scrutinizer/g/graze/guzzle-jsonrpc.svg?style=flat
-[vagrant]: http://vagrantup.com
-[jsonrpc]: http://jsonrpc.org/specification
-[guzzle]: https://github.com/guzzle/guzzle
-[promise]: https://promisesaplus.com
-[guzzle-3]: https://github.com/guzzle/guzzle3
-[guzzle-promise]: https://github.com/guzzle/promises
-[branch-3]: https://github.com/graze/guzzle-jsonrpc/tree/guzzle-3
-[branch-4]: https://github.com/graze/guzzle-jsonrpc/tree/guzzle-4
-[branch-5]: https://github.com/graze/guzzle-jsonrpc/tree/guzzle-5
-[branch-master]: https://github.com/graze/guzzle-jsonrpc
-[license]: LICENSE

README.md

@@ -25,22 +25,10 @@
             "Graze\\GuzzleHttp\\JsonRpc\\": "src"
         }
     },
-    "autoload-dev": {
-        "psr-4": {
-            "Graze\\GuzzleHttp\\JsonRpc\\Test\\": "test/src"
-        }
-    },
     "require": {
-        "php": ">=5.5|^7.0",
+        "php": "^7.4|^8.0",
         "guzzlehttp/guzzle": "^6.0",
         "guzzlehttp/promises": "^1.0",
         "psr/http-message": "^1.0"
-    },
-    "require-dev": {
-        "adlawson/timezone": "~1.0",
-        "squizlabs/php_codesniffer": "^2.9",
-        "mockery/mockery": "~0.9",
-        "phpunit/phpunit": "^4|^5",
-        "graze/standards": "^1.0"
     }
 }