don't link CppunitTest_sw_swdoc_test against sw

This test uses gb_CppunitTest_use_library_objects, and MSVC won't link
it now. Seems this was added in 1015cd4f,
but why?

Change-Id: I206132cf2b0c4075334ee7a692a12c54da9ac953

sw/CppunitTest_sw_swdoc_test.mk

@@ -58,7 +58,6 @@ $(eval $(call gb_CppunitTest_use_libraries,sw_swdoc_test, \
     svt \
     svx \
     svxcore \
-    sw \
     swd \
 	test \
     tk \