Remove frog from the repository.

frog/await/samples/dartcombat/dartcombat.css

Index: frog/await/samples/dartcombat/dartcombat.css
diff --git a/frog/await/samples/dartcombat/dartcombat.css b/frog/await/samples/dartcombat/dartcombat.css
deleted file mode 100644
index 22e5469b1e057594f71df8d47595e872010afec0..0000000000000000000000000000000000000000
--- a/frog/await/samples/dartcombat/dartcombat.css
+++ /dev/null
@@ -1,171 +0,0 @@
-/* Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file */
-/* for details. All rights reserved. Use of this source code is governed by a */
-/* BSD-style license that can be found in the LICENSE file. */
-
-.hbox,
-.vbox  {
-  display: -moz-box;
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-}
-
-.vbox {
-  -moz-box-orient: vertical;
-  -webkit-box-orient: vertical;
-}
-
-.hbox {
-  -moz-box-orient: horizontal;
-  -webkit-box-orient: horizontal;
-}
-
-.flex {
-  -moz-box-flex: 1;
-  -webkit-box-flex: 1;
-}
-
-.center {
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-  -webkit-box-pack: center;
-}
-
-.own {
-  position: relative;
-  background: #fff;
-  width: 500px;
-  height: 500px;
-  margin: 2px;
-}
-
-.enemy {
-  position: relative;
-  background: #fff;
-  width: 500px;
-  height: 550px;
-  margin: 2px;
-}
-
-.icons {
-  background-image: url(icons.gif);
-  background-repeat: no-repeat;
-}
-
-.water {
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-  width:50px;
-  height:50px;
-  z-index: 1;
-}
-
-.miss {
-  position:absolute;
-  background-position: -50px 0;
-  width:50px;
-  height:50px;
-  z-index: 3;
-}
-
-.hit {
-  position:absolute;
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-  width:50px;
-  height:50px;
-  z-index: 3;
-}
-
-.hit-onboat {
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-  background-position: -850px 0;
-  width:50px;
-  height:50px;
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-}
-
-.maybe-hit {
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-  width:50px;
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-}
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-.boat2 {
-  position:absolute;
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-.boat-left {
-}
-
-.boatdir-down {
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-.boatdir-up {
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-}
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-.boatdir-right {
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-  -moz-transform: translate(50px, 50px) rotate(180deg);
-}
-
-.notready {
-  position: absolute;
-  font-family:Arial;
-  text-align:center;
-  padding:100px 0px 100px 0px;
-  top:75px;
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-.shooting-status {
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-  background-color: white;
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-}