Remove unused annotations

core/src/main/java/org/jclouds/functions/ExceptionToValueOrPropagate.java

@@ -44,7 +44,6 @@ public class ExceptionToValueOrPropagate<E extends Exception, T> implements Func
       this.value = value;
    }
 
-   @SuppressWarnings("unchecked")
    @Override
    public T apply(Exception from) {
       checkNotNull(from, "exception");

core/src/test/java/org/jclouds/rest/BaseRestClientExpectTest.java

@@ -418,7 +418,6 @@ public abstract class BaseRestClientExpectTest<S> {
    protected String identity = "identity";
    protected String credential = "credential";
 
-   @SuppressWarnings("unchecked")
    private RestContextSpec<S, ?> makeContextSpec() {
       if (getClass().isAnnotationPresent(RegisterContext.class))
          return (RestContextSpec<S, ?>) contextSpec(provider, "http://mock", "1", "", "", "userfoo", null, getClass()