delete the non-open source code

Author: williamstein

CONTRIBUTING.md

@@ -36,8 +36,6 @@ proposed change on the
 If it *does* make sense to open a pull request, please adhere to the following
 guidelines. Pull requests that don't follow these guidelines will be closed.
 
-Pull requesets are not currently accepted for code residing under the `sspl`
-directory.
 
 
 ### Developer Certificate of Origin

LICENSE

@@ -5,15 +5,6 @@ Some code has been forked and/or vendored from projects released under different
 non-copyleft licenses, all of which are indicated by comments at the top of the
 relevant files.
 
-All code that resides under the sspl directory is made available under the terms
-of the Server Side Public License, the text of which can be found in
-sspl/LICENSE.
-
-From Mutagen v0.17 onward, SSPL-licensed code is included by default in official
-Mutagen release builds. Users wishing to create a Mutagen build with only
-MIT-licensed and non-copyleft-licensed code can do so by running the build
-script and omitting the --sspl flag. The sidecar Dockerfile also still defines
-both non-SSPL and SSPL targets, both of which are still currently shipped.
 
 --------------------------------------------------------------------------------
 

README.md

@@ -1,5 +1,9 @@
 # Mutagen
 
+**MOTIVATION:** This fork of Mutagen contains only MIT-licensed and non-copyleft-licensed code unlike https://github.com/mutagen-io/mutagen  In particular, the binary releases are fully open source and also only include the minimal very popular targets.
+
+# Original Readme below
+
 Mutagen is a new kind of remote development tool that enables your existing
 local tools to work with code in remote environments like cloud servers and
 containers. It does this by providing high-performance real-time