Update README (KMP is stable, no more elasticurl)

Author: lauzadis

README.md

@@ -13,8 +13,6 @@ This project is licensed under the Apache-2.0 License.
 
 ## Building
 
-Kotlin Multiplatform projects are in [Alpha](https://kotlinlang.org/docs/reference/evolution/components-stability.html). The CRT interfaces are subject to change.
-
 ### Linux/Unix
 Install some version of libcrypto on which s2n depends. See the [s2n](https://github.com/awslabs/s2n) documentation.
 
@@ -34,38 +32,3 @@ Set the path to `libcrypto.a` either as a command line argument to gradle `-Plib
 
 
 ### Windows
-
-
-## Elasticurl App
-
-The `elasticurl` project contains an MPP (JVM and Native only) executable that provides a simple testing application for exercising the CRT bindings. 
-
-**Native**
-
-```
-# replace "PLATFORM" with the target platform you want to run (e.g. macosX64, linuxX64, etc)
-
-./elasticurl/bin/PLATFORM/elasticurl.kexe [OPTIONS] URL
-```
-
-
-**JVM**
-```
-java -jar ./elasticurl/libs/elasticurl-jvm.jar [OPTIONS] URL
-```
-
-NOTE: You can also use the convenience script `./scripts/elasticurlJvm.sh [OPTIONS] URL`
-
-To enable memory tracing specify the environment variable `CRTDEBUG=trace=N` and provide the CLI option `-v trace`
-
-e.g.
-```
-CRTDEBUG=trace=2 ./elasticurl/bin/macosX64/elasticurl.kexe -v trace https://aws.amazon.com
-```
-
-
-**Integration Test**
-
-Run the simple elasticurl integration test script
-
-`./scripts/elasticurl-test.sh`