public static void writeDelete(ByteSlot slot, long procId) throws IOException {
    final ProcedureWALEntry.Builder builder = ProcedureWALEntry.newBuilder();
    builder.setType(ProcedureWALEntry.Type.PROCEDURE_WAL_DELETE);
    builder.setProcId(procId);
    builder.build().writeDelimitedTo(slot);
  }
Load all the procedures in these ProcedureWALFiles, and rebuild the given {@code tracker} if
needed, i.e, the {@code tracker} is a partial one.
<p/>
The method in the give {@code loader} will be called at the end after we load all the
procedures and construct the hierarchy.
<p/>
And we will call the {@link ProcedureStoreTracker#resetModified()} method for the given
{@code tracker} before returning, as it will be used to track the next proc wal file's modified
procedures.
hbase-procedure/src/main/java/org/apache/hadoop/hbase/procedure2/store/wal/ProcedureWALFormat.java