Refine LICENSE.

LICENSE.DUAL

@@ -1,35 +0,0 @@
-The MIT License (MIT)
-
-Copyright (c) 2013-2023 The SRS Authors
-
-Permission is hereby granted, free of charge, to any person obtaining a copy of
-this software and associated documentation files (the "Software"), to deal in
-the Software without restriction, including without limitation the rights to
-use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
-the Software, and to permit persons to whom the Software is furnished to do so,
-subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
-FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
-COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
-IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
-CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-
----------------------------------------------------------------------------
-Note:
-Individual files contain the following tag instead of the full license text.
-
-	SPDX-License-Identifier: MIT or MulanPSL-2.0
-
-This enables machine processing of license information based on the SPDX
-License Identifiers that are here available: http://spdx.org/licenses/
-
-For MIT, please read https://spdx.org/licenses/MIT.html
-
-For MulanPSL-2.0, please read https://spdx.org/licenses/MulanPSL-2.0.html
-and note that MulanPSL-2.0 is compatible with Apache-2.0, please see
-https://www.apache.org/legal/resolved.html#category-a

LICENSE.MulanPSL2

@@ -1,9 +0,0 @@
-Copyright (c) 2013-2023 The SRS Authors
-SRS is licensed under Mulan PSL v2.
-You can use this software according to the terms and conditions of the Mulan PSL v2.
-You may obtain a copy of Mulan PSL v2 at:
-         http://license.coscl.org.cn/MulanPSL2
-THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
-EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
-MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
-See the Mulan PSL v2 for more details.

README.md

@@ -26,10 +26,8 @@ and essential [features](trunk/doc/Features.md#features).
 
 > Note: For more details on the single-node architecture for SRS, please visit the following [link](https://www.figma.com/file/333POxVznQ8Wz1Rxlppn36/SRS-4.0-Server-Arch).
 
-SRS is licenced under [MIT](https://github.com/ossrs/srs/blob/develop/LICENSE) by default, and SRS is also licensed 
-under [MIT](https://github.com/ossrs/srs/blob/develop/LICENSE) or [MulanPSL-2.0](https://spdx.org/licenses/MulanPSL-2.0.html).
-Please note that [MulanPSL-2.0 is compatible with Apache-2.0](https://www.apache.org/legal/resolved.html#category-a),
-and some third-party libraries are distributed under their [licenses](https://ossrs.io/lts/en-us/license).
+SRS is licenced under [MIT](https://github.com/ossrs/srs/blob/develop/LICENSE), and some third-party libraries are 
+distributed under their [licenses](https://ossrs.io/lts/en-us/license).
 
 <a name="product"></a> <a name="usage-docker"></a>
 
@@ -121,9 +119,8 @@ To stay in touch and keep helping our community, please check out this [guide](h
 
 [![FOSSA Status](https://app.fossa.com/api/projects/git%2Bgithub.com%2Fossrs%2Fsrs.svg?type=small)](https://app.fossa.com/projects/git%2Bgithub.com%2Fossrs%2Fsrs?ref=badge_small)
 
-SRS is licenced under [MIT](https://github.com/ossrs/srs/blob/develop/LICENSE) or [MulanPSL-2.0](https://spdx.org/licenses/MulanPSL-2.0.html).
-Please note that while [MulanPSL-2.0 is compatible with Apache-2.0](https://www.apache.org/legal/resolved.html#category-a),
-some third-party libraries are distributed under their [licenses](https://ossrs.io/lts/en-us/license).
+SRS is licenced under [MIT](https://github.com/ossrs/srs/blob/develop/LICENSE), and some third-party libraries are 
+distributed under their [licenses](https://ossrs.io/lts/en-us/license).
 
 [![](https://app.fossa.com/api/projects/git%2Bgithub.com%2Fossrs%2Fsrs.svg?type=large)](https://app.fossa.com/projects/git%2Bgithub.com%2Fossrs%2Fsrs?ref=badge_large)