user ops are not encoded in the bc format

llvm-svn: 21997

llvm/docs/BytecodeFormat.html

@@ -1599,8 +1599,6 @@ single <a href="#uint32_vbr">uint32_vbr</a> as follows:</p>
       <tr><td>VANext</td><td>32</td><td>1</td><td>1.0</td></tr>
       <tr><td>VAArg</td><td>33</td><td>1</td><td>1.0</td></tr>
       <tr><td>Select</td><td>34</td><td>2</td><td>1.2</td></tr>
-      <tr><td>UserOp1</td><td>35</td><td>1</td><td>1.0</td></tr>
-      <tr><td>UserOp2</td><td>36</td><td>1</td><td>1.0</td></tr>
       <tr><td colspan="4">
           <b>Pseudo Instructions<a href="#pi_note">*</a></b>
       </td></tr>