Remove Unused JAR Launcher Prefix to Fix Issue with Signing (#1672)

* Remove prefix

* Update docs

build.sbt

@@ -1108,16 +1108,6 @@ lazy val `engine-runner` = project
       case x =>
         MergeStrategy.first
     },
-    assemblyOption in assembly := (assemblyOption in assembly).value
-      .copy(
-        prependShellScript = Some(
-          defaultUniversalScript(
-            shebang = false,
-            javaOpts = truffleRunOptions ++
-              Seq("-Dtruffle.class.path.append=runtime.jar")
-          )
-        )
-      ),
     commands += WithDebugCommand.withDebug,
     inConfig(Compile)(truffleRunOptionsSettings),
     libraryDependencies ++= Seq(

docs/CONTRIBUTING.md

@@ -661,7 +661,7 @@ Below are options uses by the Language Server:
 To run the Language Server on 127.0.0.1:8080 type:
 
 ```bash
-./runner.jar \
+distribution/bin/enso \
   --server \
   --root-id 3256d10d-45be-45b1-9ea4-7912ef4226b1 \
   --path /tmp/content-root