Remove unused function from lib/base/string.c as it breaks with -Werror.
Remove unused function from lib/base/string.c as it breaks with -Werror.

madscientist159/heimdal,madscientist159/heimdal,madscientist159/heimdal,madscientist159/heimdal,madscientist159/heimdal,madscientist159/heimdal,madscientist159/heimdal