JS: Remove duplicate PromiseFlowStep

Author: asger-semmle

javascript/ql/src/semmle/javascript/Promises.qll

@@ -4,23 +4,6 @@
 
 import javascript
 
-/**
- * A data flow edge from a promise reaction to the corresponding handler.
- */
-private class PromiseFlowStep extends DataFlow::AdditionalFlowStep {
-  PromiseDefinition p;
-
-  PromiseFlowStep() { this = p }
-
-  override predicate step(DataFlow::Node pred, DataFlow::Node succ) {
-    pred = p.getResolveParameter().getACall().getArgument(0) and
-    succ = p.getAResolveHandler().getParameter(0)
-    or
-    pred = p.getRejectParameter().getACall().getArgument(0) and
-    succ = p.getARejectHandler().getParameter(0)
-  }
-}
-
 /**
  * Holds if taint propagates from `pred` to `succ` through promises.
  */

javascript/ql/src/semmle/javascript/StandardLibrary.qll

@@ -142,7 +142,7 @@ private class ES2015PromiseDefinition extends PromiseDefinition, DataFlow::NewNo
 /**
  * A data flow edge from a promise reaction to the corresponding handler.
  */
-private class PromiseFlowStep extends DataFlow::AdditionalFlowStep {
+private class PromiseFlowStep extends DataFlow::AdditionalFlowStep {  
   PromiseDefinition p;
 
   PromiseFlowStep() { this = p }