Removed test for tape size in simplebufferwrite because it prevented the model...

Removed test for tape size in simplebufferwrite because it prevented the model from predicting splitword actions

transition_machine/src/ActionBank.cpp

@@ -1273,10 +1273,10 @@ bool ActionBank::simpleBufferWriteAppliable(Config & config,
 
   int index = config.getHead() + relativeIndex;
 
-  if (!checkEmptyness)
-    return !(index < 0) && index < tape.size();
+  if (!checkEmptyness || index >= tape.size())
+    return !(index < 0);
 
-  return !(index < 0) && index < tape.size() && tape.getHyp(relativeIndex).empty();
+  return !(index < 0) && tape.getHyp(relativeIndex).empty();
 }
 
 bool ActionBank::isRuleAppliable(Config & config,