git: deprecate SHAHash, use Hash instead

plugins/git4idea/src/git4idea/history/browser/SHAHash.java

@@ -15,8 +15,10 @@
  */
 package git4idea.history.browser;
 
-import git4idea.history.wholeTree.AbstractHash;
-
+/**
+ * @deprecated Use {@link com.intellij.vcs.log.Hash}
+ */
+@Deprecated
 public class SHAHash {
   private final String myValue;
 
@@ -35,10 +37,6 @@ public class SHAHash {
     return myValue;
   }
 
-  public static SHAHash emulate(final AbstractHash abstractHash) {
-    return new SHAHash(abstractHash.getString(), false);
-  }
-
   @Override
   public String toString() {
     return myValue;