removed dummy plugin from tests build

Author: wsafonov

code/languages/org.iets3.opensource/solutions/org.iets3.opensource.build/models/org/iets3/opensource/build/build.mps

@@ -11496,27 +11496,6 @@
       <property role="TZNOO" value="1.8" />
       <property role="2_Ic$B" value="true" />
     </node>
-    <node concept="m$_wf" id="3gmMi5swQwP" role="3989C9">
-      <property role="m$_wk" value="dummy" />
-      <node concept="3_J27D" id="3gmMi5swQwR" role="m$_yQ">
-        <node concept="3Mxwew" id="3gmMi5swQDl" role="3MwsjC">
-          <property role="3MwjfP" value="dummy" />
-        </node>
-      </node>
-      <node concept="3_J27D" id="3gmMi5swQwT" role="m_cZH">
-        <node concept="3Mxwew" id="3gmMi5swQDn" role="3MwsjC">
-          <property role="3MwjfP" value="dummy" />
-        </node>
-      </node>
-      <node concept="3_J27D" id="3gmMi5swQwV" role="m$_w8">
-        <node concept="3Mxwey" id="3gmMi5swQF8" role="3MwsjC">
-          <ref role="3Mxwex" to="ffeo:3IKDaVZnAxg" resolve="build.number" />
-        </node>
-      </node>
-      <node concept="m$_yC" id="3gmMi5swQKs" role="m$_yJ">
-        <ref role="m$_y1" to="al5i:NMVW79yitG" resolve="com.mbeddr.mpsutil.userstyles" />
-      </node>
-    </node>
     <node concept="398rNT" id="1Y5vs7yKdR8" role="1l3spd">
       <property role="TrG5h" value="iets3.github.opensource.home" />
       <node concept="55IIr" id="1Y5vs7yKdTn" role="398pKh">