[mjsunit] Remove unsupported flag --turbo-deoptimization from tests.

test/mjsunit/debug-backtrace-text.js

 // Copyright 2008 the V8 project authors. All rights reserved.
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-// Flags: --expose-debug-as debug --turbo-deoptimization
+// Flags: --expose-debug-as debug
 
 // The functions used for testing backtraces.
 function Point(x, y) {
   this.x = x;
   this.y = y;
 };
 
 Point.prototype.distanceTo = function(p) {
   debugger;
   return Math.sqrt(Math.pow(Math.abs(this.x - p.x), 2) + Math.pow(Math.abs(this.y - p.y), 2))
@@ skipping 74 matching lines @@
 
 // Set a break point and call to invoke the debug event listener.
 listenerCalled = false;
 testConstructor = true;
 Debug.setBreakPoint(Point, 0, 0);
 createPoint(0, 0);
 
 // Make sure that the debug event listener vas invoked (again).
 assertTrue(listenerCalled);
 assertFalse(exception, "exception in listener")