Revert "try to supply names in LocalReadVariableNode"

This reverts commit d4c432110a690292fd47923572bd46ef7e5b4ca5.

com.oracle.truffle.r.nodes/src/com/oracle/truffle/r/nodes/access/variables/LocalReadVariableNode.java

@@ -51,7 +51,6 @@ public final class LocalReadVariableNode extends Node {
 
     private final Object identifier;
     private final boolean forceResult;
-    @CompilationFinal private boolean firstExecution = true;
 
     @CompilationFinal(dimensions = 1) private boolean[] seenValueKinds;
     @CompilationFinal private ValueProfile valueProfile;
@@ -145,13 +144,6 @@ public final class LocalReadVariableNode extends Node {
                 isPromiseProfile = ConditionProfile.createBinaryProfile();
             }
             if (isPromiseProfile.profile(result instanceof RPromise)) {
-                if (firstExecution) {
-                    CompilerDirectives.transferToInterpreterAndInvalidate();
-                    firstExecution = false;
-                    if (identifier instanceof String) {
-                        return ReadVariableNode.evalPromiseSlowPathWithName((String) identifier, frame, (RPromise) result);
-                    }
-                }
                 if (promiseHelper == null) {
                     CompilerDirectives.transferToInterpreterAndInvalidate();
                     promiseHelper = insert(new PromiseHelperNode());