Avoids duplicate symbol clash with the other function with an
identical name and signature in sw/source/ui/uno/swdet2.cxx in the
case of disable-dynloading.

The IsDocShellRegistered() function used in
sw/source/filter/basflt/iodetect.cxx presumably refers to the one in
swdet2.cxx, as iodetect and swdet2 both go into the swd library, while
fltini goes into the sw library.

Change-Id: I2916f1698542679bf18abf9a7981fc32ef2d9829