serve: fix Coverity issue: Unused value (UNUSED_VALUE)
serve: fix Coverity issue: Unused value (UNUSED_VALUE)

returned_pointer: Assigning value from strtok_r(NULL, ":", &save)
to temp here, but that stored value is overwritten before it can be used.

Signed-off-by: Michael Ira Krufky <00524723a60798c74a43fcc620c25dd7b9ece078@linuxtv.org>

mkrufky/libdvbtee,mkrufky/libdvbtee,mkrufky/libdvbtee,mkrufky/libdvbtee,mkrufky/libdvbtee