temporary disable SFC transitions in IL, because matiec can't compile it

matiec freezes in this case.
See https://bitbucket.org/mjsousa/matiec/issues/58/iec2c-freezes-if-sfc-transition-is-in-il

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                  <xsd:element name="Win32">

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                    <xsd:complexType>

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                      %(toolchain_gcc)s

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                    </xsd:complexType>

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                  </xsd:element>

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