Fix #2409: Unbreak JIT

* It was just a stray context load that I forgot to remove.

Author: subbuss

core/src/main/java/org/jruby/ir/targets/JVMVisitor.java

@@ -2121,7 +2121,6 @@ public void Self(Self self) {
 
     @Override
     public void Splat(Splat splat) {
-        jvmMethod().loadContext();
         visit(splat.getArray());
         // Splat is now only used in call arg lists where it is guaranteed that
         // the splat-arg is an array.