[Devtools] Template fromTarget() function calls to model

third_party/WebKit/Source/devtools/front_end/sdk/DebuggerModel.js

 /*
  * Copyright (C) 2010 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 63 matching lines @@
     return result;
   }
 
   /**
    * @param {?SDK.Target} target
    * @return {?SDK.DebuggerModel}
    */
   static fromTarget(target) {
     if (!target || !target.hasJSCapability())
       return null;
-    return /** @type {?SDK.DebuggerModel} */ (target.model(SDK.DebuggerModel));
+    return target.model(SDK.DebuggerModel);
   }
 
   /**
    * @return {boolean}
    */
   debuggerEnabled() {
     return !!this._debuggerEnabled;
   }
 
   /**
@@ skipping 1218 matching lines @@
         stack.callFrames.shift();
       if (previous && !stack.callFrames.length)
         previous.parent = stack.parent;
       else
         previous = stack;
       stack = stack.parent;
     }
     return asyncStackTrace;
   }
 };