tdf#45904 Remove obsolete tests for ScHeaderFieldObj

These tests are already ported to C++ in ScEditFieldObj_Header.

Change-Id: I548a50b6e717f706ff89dce530542a0a710185a7
Reviewed-on: https://gerrit.libreoffice.org/70754
Tested-by: Jenkins
Reviewed-by: Jens Carl <j.carl43@gmx.de>

qadevOOo/objdsc/sc/com.sun.star.comp.office.ScHeaderFieldObj.csv

 "ScHeaderFieldObj";"com::sun::star::lang::XComponent";"dispose()"
 "ScHeaderFieldObj";"com::sun::star::lang::XComponent";"addEventListener()"
 "ScHeaderFieldObj";"com::sun::star::lang::XComponent";"removeEventListener()"
-"ScHeaderFieldObj";"com::sun::star::text::TextContent";"AnchorType#optional"
-"ScHeaderFieldObj";"com::sun::star::text::TextContent";"AnchorTypes#optional"
-"ScHeaderFieldObj";"com::sun::star::text::TextContent";"TextWrap#optional"
 "ScHeaderFieldObj";"com::sun::star::text::XTextField";"getPresentation()"
-"ScHeaderFieldObj";"com::sun::star::beans::XPropertySet#optional";"getPropertySetInfo()"
-"ScHeaderFieldObj";"com::sun::star::beans::XPropertySet#optional";"setPropertyValue()"
-"ScHeaderFieldObj";"com::sun::star::beans::XPropertySet#optional";"getPropertyValue()"
-"ScHeaderFieldObj";"com::sun::star::beans::XPropertySet#optional";"addPropertyChangeListener()"
-"ScHeaderFieldObj";"com::sun::star::beans::XPropertySet#optional";"removePropertyChangeListener()"
-"ScHeaderFieldObj";"com::sun::star::beans::XPropertySet#optional";"addVetoableChangeListener()"
-"ScHeaderFieldObj";"com::sun::star::beans::XPropertySet#optional";"removeVetoableChangeListener()"
-"ScHeaderFieldObj";"com::sun::star::text::XTextContent";"attach()"
-"ScHeaderFieldObj";"com::sun::star::text::XTextContent";"getAnchor()"