[vcs-log] remove unused methods

Default getIconHeight implementation was used in StripeIcon, which was removed in f6ba2ae34f.

platform/vcs-log/impl/src/com/intellij/vcs/log/ui/frame/ProgressStripeIcon.java

@@ -1,18 +1,4 @@
-/*
- * Copyright 2000-2016 JetBrains s.r.o.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
+// Copyright 2000-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
 package com.intellij.vcs.log.ui.frame;
 
 import com.intellij.ide.ui.laf.intellij.MacIntelliJProgressBarUI;
@@ -35,7 +21,6 @@ import static com.intellij.ui.JBColor.namedColor;
 
 public abstract class ProgressStripeIcon implements Icon {
   private static final int TRANSLATE = 1;
-  private static final int HEIGHT = 3;
   @NotNull
   private final JComponent myReferenceComponent;
   private final int myShift;
@@ -68,15 +53,6 @@ public abstract class ProgressStripeIcon implements Icon {
     return myReferenceComponent.getWidth();
   }
 
-  @Override
-  public int getIconHeight() {
-    return getHeight();
-  }
-
-  public static int getHeight() {
-    return JBUI.scale(HEIGHT);
-  }
-
   private static class GradientIcon extends ProgressStripeIcon {
     private static final Color DARK = new ProgressStripeColor(namedColor("ProgressBar.indeterminateStartColor",
                                                                          new JBColor(new Color(0x4d9ff8), new Color(0x6a6a6a))),