Deleted OpenWhisk documentation

OpenWhisk is no longer supported (since 4.0.0-M5), deleting related documentation.

docs/src/main/asciidoc/adapters/openwhisk-quick-start.adoc

@@ -1,80 +0,0 @@
-Implement a POF (be sure to use the `functions` package):
-
-```
-package functions;
-
-import java.util.function.Function;
-
-public class Uppercase implements Function<String, String> {
-
-	public String apply(String input) {
-		return input.toUpperCase();
-	}
-}
-```
-
-Install it into your local Maven repository:
-
-```
-./mvnw clean install
-```
-
-Create a `function.properties` file that provides its Maven coordinates. For example:
-
-```
-dependencies.function: com.example:pof:0.0.1-SNAPSHOT
-```
-
-Copy the openwhisk runner JAR to the working directory (same directory as the properties file):
-
-```
-cp spring-cloud-function-adapters/spring-cloud-function-adapter-openwhisk/target/spring-cloud-function-adapter-openwhisk-2.0.0.BUILD-SNAPSHOT.jar runner.jar
-```
-
-Generate a m2 repo from the `--thin.dryrun` of the runner JAR with the above properties file:
-
-```
-java -jar -Dthin.root=m2 runner.jar --thin.name=function --thin.dryrun
-```
-
-Use the following Dockerfile:
-
-```
-FROM openjdk:8-jdk-alpine
-VOLUME /tmp
-COPY m2 /m2
-ADD runner.jar .
-ADD function.properties .
-ENV JAVA_OPTS=""
-ENTRYPOINT [ "java", "-Djava.security.egd=file:/dev/./urandom", "-jar", "runner.jar", "--thin.root=/m2", "--thin.name=function", "--function.name=uppercase"]
-EXPOSE 8080
-```
-
-> NOTE: you could use a Spring Cloud Function app, instead of just a jar with a POF in it, in which case you would have to change the way the app runs in the container so that it picks up the main class as a source file. For example, you could change the `ENTRYPOINT` above and add `--spring.main.sources=com.example.SampleApplication`.
-
-Build the Docker image:
-
-```
-docker build -t [username/appname] .
-```
-
-Push the Docker image:
-
-```
-docker push [username/appname]
-```
-
-Use the OpenWhisk CLI (e.g. after `vagrant ssh`) to create the action:
-
-```
-wsk action create example --docker [username/appname]
-```
-
-Invoke the action:
-
-```
-wsk action invoke example --result --param payload foo
-{
-    "result": "FOO"
-}
-```