Get rid of redundant odk/source/unowinreg/win/unowinreg.def

...similar to 28b4f4ae "Get rid of Windows .def
files in setup_native, use __declspec(dllexport)".  And JNIEXPORT (with which
the listed functions are decorated in odk/source/unowinreg/win/unowinreg.cxx)
already implies __declspec(dllexport).

Change-Id: I45fd1d50cd3b072d124002e469c70eb1d6ed7610
Reviewed-on: https://gerrit.libreoffice.org/60819
Tested-by: Jenkins
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>

odk/Library_unowinreg.mk

@@ -20,7 +20,6 @@ $(eval $(call gb_Library_add_libs,unowinreg,\
 ))
 else
 $(eval $(call gb_Library_add_ldflags,unowinreg,\
-	/DEF:$(SRCDIR)/odk/source/unowinreg/win/unowinreg.def \
 	/MANIFEST:NO \
 ))
 endif

odk/source/unowinreg/win/unowinreg.def

-LIBRARY		"unowinreg.dll"
-EXPORTS
-			Java_com_sun_star_lib_loader_WinRegKey_winreg_1RegOpenClassesRoot
-			Java_com_sun_star_lib_loader_WinRegKey_winreg_1RegOpenCurrentConfig
-			Java_com_sun_star_lib_loader_WinRegKey_winreg_1RegOpenCurrentUser
-			Java_com_sun_star_lib_loader_WinRegKey_winreg_1RegOpenLocalMachine
-			Java_com_sun_star_lib_loader_WinRegKey_winreg_1RegOpenUsers
-			Java_com_sun_star_lib_loader_WinRegKey_winreg_1RegOpenKeyEx
-			Java_com_sun_star_lib_loader_WinRegKey_winreg_1RegCloseKey
-			Java_com_sun_star_lib_loader_WinRegKey_winreg_1RegQueryValueEx
-			Java_com_sun_star_lib_loader_WinRegKey_winreg_1RegQueryInfoKey