Remove duplicate node substitute/transformation action for EnumDeclaration.type

Problem: Multiple auto completion menu items are generated for the EnumDeclaration.type option.
Solution: Disable the generation of the menu item for all but one optional editor cells.

Author: AlexeiQ

code/languages/org.iets3.opensource/languages/org.iets3.core.expr.toplevel/models/org/iets3/core/expr/toplevel/editor.mps

@@ -1899,6 +1899,13 @@
                 <property role="VOm3f" value="true" />
               </node>
             </node>
+            <node concept="ZYGn8" id="68WOIGeG1Ja" role="ZWbT9">
+              <node concept="3clFbS" id="68WOIGeG1Jb" role="2VODD2">
+                <node concept="3clFbF" id="68WOIGeG1Jl" role="3cqZAp">
+                  <node concept="10Nm6u" id="68WOIGeG1Jk" role="3clFbG" />
+                </node>
+              </node>
+            </node>
           </node>
           <node concept="3F0ifn" id="3YhAT14YvNu" role="3EZMnx">
             <property role="3F0ifm" value="{..}" />
@@ -1989,6 +1996,13 @@
               <property role="VOm3f" value="true" />
             </node>
           </node>
+          <node concept="ZYGn8" id="68WOIGeG1KK" role="ZWbT9">
+            <node concept="3clFbS" id="68WOIGeG1KL" role="2VODD2">
+              <node concept="3clFbF" id="68WOIGeG1KV" role="3cqZAp">
+                <node concept="10Nm6u" id="68WOIGeG1KU" role="3clFbG" />
+              </node>
+            </node>
+          </node>
         </node>
         <node concept="l2Vlx" id="3WWvqarUGzE" role="2iSdaV" />
         <node concept="3F0ifn" id="3WWvqarUGzF" role="3EZMnx">
@@ -2210,6 +2224,13 @@
                 <property role="VOm3f" value="true" />
               </node>
             </node>
+            <node concept="ZYGn8" id="68WOIGeKJyS" role="ZWbT9">
+              <node concept="3clFbS" id="68WOIGeKJyT" role="2VODD2">
+                <node concept="3clFbF" id="68WOIGeKJz$" role="3cqZAp">
+                  <node concept="10Nm6u" id="68WOIGeKJzz" role="3clFbG" />
+                </node>
+              </node>
+            </node>
           </node>
           <node concept="2iRfu4" id="3YhAT14Yx9m" role="2iSdaV" />
           <node concept="VPM3Z" id="3YhAT14Yx9n" role="3F10Kt">