Remove accidentally added files.

test/mjsunit/regress/regress-math-log.js

Index: test/mjsunit/regress/regress-math-log.js
diff --git a/test/mjsunit/regress/regress-math-log.js b/test/mjsunit/regress/regress-math-log.js
deleted file mode 100644
index 0d29693c412c35d87f253e68fa74640140e05675..0000000000000000000000000000000000000000
--- a/test/mjsunit/regress/regress-math-log.js
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright 2015 the V8 project authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// Flags: --allow-natives-syntax
-
-function log(x) {
-  return Math.log(x);
-}
-
-var x = %ConstructDouble(1072693247, -2);
-
-var expected = log(x);
-log(x);
-%OptimizeFunctionOnNextCall(log);
-assertEquals(expected, log(x));