remove no longer needed web3 references from txbrowser

src/app/debugger/debuggerUI.js

@@ -62,10 +62,6 @@ class DebuggerUI {
       self.debugger.codeManager.resolveStep(index, self.tx)
     })
 
-    executionContext.event.register('contextChanged', this, function () {
-      self.updateWeb3Reference()
-    })
-
     container.appendChild(this.render())
 
     this.setEditor()
@@ -114,7 +110,7 @@ class DebuggerUI {
     const self = this
     let web3 = executionContext.web3()
 
-    let txBrowser = new TxBrowser(this, {web3: web3})
+    let txBrowser = new TxBrowser()
     this.txBrowser = txBrowser
 
     txBrowser.event.register('requestDebug', function (blockNumber, txNumber, tx) {
@@ -200,11 +196,6 @@ class DebuggerUI {
     })
   }
 
-  updateWeb3Reference (web3) {
-    if (!this.txBrowser) return
-    this.txBrowser.web3 = web3 || executionContext.web3()
-  }
-
   render () {
     this.debuggerPanelsView = yo`<div class="${css.innerShift}"></div>`
     this.debuggerHeadPanelsView = yo`<div class="${css.innerShift}"></div>`

src/app/debugger/debuggerUI/TxBrowser.js

@@ -45,13 +45,12 @@ var css = csjs`
   }
 `
 
-function TxBrowser (_parent, opts) {
+function TxBrowser () {
   this.event = new EventManager()
 
   this.blockNumber
   this.txNumber
   this.view
-  this.web3 = opts.web3
   this.setDefaultValues()
 }