remove debugging code

com.oracle.truffle.r.runtime/src/com/oracle/truffle/r/runtime/RCaller.java

@@ -46,9 +46,6 @@ public final class RCaller {
         this.depth = depthFromFrame(callingFrame);
         this.parent = parentFromFrame(callingFrame);
         this.payload = nodeOrSupplier;
-        if (parent == null || payload == null) {
-            System.console();
-        }
     }
 
     private static int depthFromFrame(Frame callingFrame) {
@@ -63,9 +60,6 @@ public final class RCaller {
         this.depth = depth;
         this.parent = parent;
         this.payload = nodeOrSupplier;
-        if (parent == null || payload == null) {
-            System.console();
-        }
     }
 
     public int getDepth() {