Update wget to version 1.17.1.
Remove patches as they are included upstream.

Changes in Wget 1.17.1
* Fix compile error when IPv6 is disabled or SSL is not present.
* Fix HSTS memory leak.
* Fix progress output in non-C locales.
* Fix SIGSEGV when -N and --content-disposition are used together.
* Add --check-certificate=quiet to tell wget to not print any warning
  about invalid certificates.

Signed-off-by: Hannu Nyman <hannu.nyman@iki.fi>