cmake: Remove libsocket

This is already part of LIBSSH_REQUIRED_LIBRARIES

Signed-off-by: Andreas Schneider <asn@cryptomilk.org>
Reviewed-by: Anderson Toshiyuki Sasaki <ansasaki@redhat.com>

src/CMakeLists.txt

@@ -18,13 +18,6 @@ if (WIN32)
   )
 endif (WIN32)
 
-if (HAVE_LIBSOCKET)
-  set(LIBSSH_LINK_LIBRARIES
-    ${LIBSSH_LINK_LIBRARIES}
-    socket
-  )
-endif (HAVE_LIBSOCKET)
-
 if (OPENSSL_CRYPTO_LIBRARY)
   set(LIBSSH_PRIVATE_INCLUDE_DIRS
     ${LIBSSH_PRIVATE_INCLUDE_DIRS}