vcs: remove unused method - AbstractVcs.revisionsSame

platform/vcs-api/src/com/intellij/openapi/vcs/AbstractVcs.java

@@ -603,13 +603,6 @@ public abstract class AbstractVcs<ComList extends CommittedChangeList> extends S
     return true;
   }
 
-  /**
-   * compares different presentations of revision number (ex. in Perforce)
-   */
-  public boolean revisionsSame(@NotNull final VcsRevisionNumber number1, @NotNull final VcsRevisionNumber number2) {
-    return number1.equals(number2);
-  }
-
   public CheckoutProvider getCheckoutProvider() {
     return null;
   }