samples: remove superfluous labels (reveiled in #766)

test/data/OSMD_function_test_Ornaments.xml

@@ -83,16 +83,6 @@
           <line>2</line>
           </clef>
         </attributes>
-      <direction placement="above">
-        <direction-type>
-          <words default-y="40.00" relative-x="-75.25" relative-y="19.26" font-weight="bold" font-size="12">Ornaments</words>
-          </direction-type>
-        </direction>
-      <direction placement="above">
-        <direction-type>
-          <words default-y="40.00" relative-x="-75.25" relative-y="19.26" font-weight="bold" font-size="12">Ornaments</words>
-          </direction-type>
-        </direction>
       <note default-x="137.53" default-y="-20.00">
         <pitch>
           <step>B</step>

test/data/OSMD_function_test_expressions.musicxml

@@ -98,11 +98,6 @@
         </direction>
       <direction placement="above">
         <direction-type>
-          <words default-y="40.00">Notenzeilentext</words>
-          </direction-type>
-        </direction>
-      <direction placement="above">
-        <direction-type>
           <octave-shift type="down" size="8" number="1" default-y="30.00"/>
           </direction-type>
         </direction>