Remove deprecated extension types

Author: dietzc

org.knime.knip.knimepython/plugin.xml

@@ -30,21 +30,4 @@
             path="templates/">
       </folder>
    </extension>
-   <extension
-         point="org.knime.python2.typeextension.knimetopython">
-      <type
-            id="org.knime.knip.knimepython.ImgPlus"
-            java-serializer-factory="org.knime.knip.knimepython2.ImgPlusSerializerFactory"
-            python-deserializer="py/KNIPImageDeserializer.py">
-      </type>
-   </extension>
-   <extension
-         point="org.knime.python2.typeextension.pythontoknime">
-      <type
-            id="org.knime.knip.knimepython.type2"
-            java-deserializer-factory="org.knime.knip.knimepython2.ImgPlusDeserializerFactory"
-            python-serializer="py/KNIPImageSerializer.py"
-            python-type-identifier="KNIPImage.KNIPImage">
-      </type>
-   </extension>
 </plugin>