removed serpent and twofish plugins - use gcrypt instead

configure.in

@@ -191,22 +191,6 @@ AC_ARG_ENABLE(
 	fi]
 )
 
-AC_ARG_ENABLE(
-	[serpent],
-	AS_HELP_STRING([--enable-serpent],[enable Serpent software implementation plugin (default is NO).]),
-	[if test x$enableval = xyes; then
-		serpent=true
-	fi]
-)
-
-AC_ARG_ENABLE(
-	[twofish],
-	AS_HELP_STRING([--enable-twofish],[enable Twofish software implementation plugin (default is NO).]),
-	[if test x$enableval = xyes; then
-		twofish=true
-	fi]
-)
-
 AC_ARG_ENABLE(
 	[md4],
 	AS_HELP_STRING([--enable-md4],[enable MD4 software implementation plugin (default is NO).]),
@@ -1086,12 +1070,6 @@ if test x$blowfish = xtrue; then
 	libstrongswan_plugins=${libstrongswan_plugins}" blowfish"
 	pluto_plugins=${pluto_plugins}" blowfish"
 fi
-if test x$serpent = xtrue; then
-	pluto_plugins=${pluto_plugins}" serpent"
-fi
-if test x$twofish = xtrue; then
-	pluto_plugins=${pluto_plugins}" twofish"
-fi
 if test x$sha1 = xtrue; then
 	libstrongswan_plugins=${libstrongswan_plugins}" sha1"
 	pluto_plugins=${pluto_plugins}" sha1"
@@ -1168,8 +1146,6 @@ AM_CONDITIONAL(USE_LDAP, test x$ldap = xtrue)
 AM_CONDITIONAL(USE_AES, test x$aes = xtrue)
 AM_CONDITIONAL(USE_DES, test x$des = xtrue)
 AM_CONDITIONAL(USE_BLOWFISH, test x$blowfish = xtrue)
-AM_CONDITIONAL(USE_SERPENT, test x$serpent = xtrue)
-AM_CONDITIONAL(USE_TWOFISH, test x$twofish = xtrue)
 AM_CONDITIONAL(USE_MD4, test x$md4 = xtrue)
 AM_CONDITIONAL(USE_MD5, test x$md5 = xtrue)
 AM_CONDITIONAL(USE_SHA1, test x$sha1 = xtrue)
@@ -1261,8 +1237,6 @@ AC_OUTPUT(
 	src/libstrongswan/plugins/aes/Makefile
 	src/libstrongswan/plugins/des/Makefile
 	src/libstrongswan/plugins/blowfish/Makefile
-	src/libstrongswan/plugins/serpent/Makefile
-	src/libstrongswan/plugins/twofish/Makefile
 	src/libstrongswan/plugins/md4/Makefile
 	src/libstrongswan/plugins/md5/Makefile
 	src/libstrongswan/plugins/sha1/Makefile