Update operators list in Doxygen

Signed-off-by: Freddie Liardet <frederick.liardet@arm.com>
Change-Id: I415b3379e47dc4fb672179a2181922844ebc4653
Reviewed-on: https://review.mlplatform.org/c/ml/ComputeLibrary/+/6044
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Michele Di Giorgio <michele.digiorgio@arm.com>
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>
diff --git a/docs/user_guide/operator_list.dox b/docs/user_guide/operator_list.dox
index 05cc892..50d3b55 100644
--- a/docs/user_guide/operator_list.dox
+++ b/docs/user_guide/operator_list.dox
@@ -164,9 +164,6 @@
     <tr><td>QSYMM16<td>QSYMM16<td>QASYMM16
     <tr><td>QSYMM16<td>QSYMM16<td>S32
     <tr><td>U8<td>U8<td>U8
-    <tr><td>U8<td>U8<td>S16
-    <tr><td>U8<td>S16<td>S16
-    <tr><td>S16<td>U8<td>S16
     <tr><td>S16<td>S16<td>S16
     <tr><td>S32<td>S32<td>S32
     <tr><td>F16<td>F16<td>F16
@@ -192,9 +189,6 @@
     <tr><td>QSYMM16<td>QSYMM16<td>QASYMM16
     <tr><td>QSYMM16<td>QSYMM16<td>S32
     <tr><td>U8<td>U8<td>U8
-    <tr><td>U8<td>U8<td>S16
-    <tr><td>U8<td>S16<td>S16
-    <tr><td>S16<td>U8<td>S16
     <tr><td>S16<td>S16<td>S16
     <tr><td>S32<td>S32<td>S32
     <tr><td>F16<td>F16<td>F16
@@ -3107,18 +3101,6 @@
       <ul>
        <li>n/a
       </ul>
-  <td>CLWinogradInputTransform
-  <td>
-      <ul>
-       <li>NHWC
-       <li>NCHW
-      </ul>
-  <td>
-    <table>
-    <tr><th>src<th>dst
-    <tr><td>F16<td>F16
-    <tr><td>F32<td>F32
-    </table>
 </table>
 
 */