Merge pull request #551 from ReFirmLabs/hlink_removal

Removed hilink decryption plugin; contains priprietary crypto key(s).

Author: devttys0

src/binwalk/config/extract.conf

@@ -14,7 +14,6 @@
 #   o zlib
 #   o cpio
 #   o Raw LZMA/deflate streams
-#   o Hilink encrypted uImage firmware
 #   o D-Link "ROMFSv9.0" file systems
 #
 # There are also alternative extractors for the following file formats, implemented as plugins: