simplify code

src/app/debugger/debuggerUI/StepManager.js

@@ -53,32 +53,28 @@ function StepManager (_parent, _traceManager) {
         if (self.buttonNavigator) {
           self.buttonNavigator.resetWarning('')
         }
-      } else {
+        return
+      }
       self.currentCall = callsPath[callsPath.length - 1]
       if (self.currentCall.reverted) {
         let revertedReason = self.currentCall.outofgas ? 'outofgas' : ''
-          if (self.buttonNavigator) {
         self.revertionPoint = self.currentCall.return
+        if (self.buttonNavigator) {
           self.buttonNavigator.resetWarning(revertedReason)
         }
-        } else {
-          var k = callsPath.length - 2
-          while (k >= 0) {
+        return
+      }
+      for (var k = callsPath.length - 2; k >= 0; k--) {
         var parent = callsPath[k]
-            if (parent.reverted) {
-              let revertedReason = parent ? 'parenthasthrown' : ''
-              if (self.buttonNavigator) {
+        if (!parent.reverted)  continue
         self.revertionPoint = parent.return
-                self.buttonNavigator.resetWarning(revertedReason)
-              }
+        if (self.buttonNavigator) {
+          self.buttonNavigator.resetWarning('parenthasthrown')
         }
-            k--
       }
       if (self.buttonNavigator) {
         self.buttonNavigator.resetWarning('')
       }
-        }
-      }
     })
   })
 
@@ -134,10 +130,6 @@ StepManager.prototype.init = function () {
   this.changeState(0)
 }
 
-StepManager.prototype.newTraceAvailable = function () {
-  this.init()
-}
-
 StepManager.prototype.jumpTo = function (step) {
   if (!this.traceManager.inRange(step)) return
   this.slider.setValue(step)