(finally) Remove IRC Seed support now that lfnet is down.

bitcoin-qt.pro

@@ -159,7 +159,6 @@ HEADERS += src/qt/bitcoingui.h \
     src/walletdb.h \
     src/script.h \
     src/init.h \
-    src/irc.h \
     src/bloom.h \
     src/mruset.h \
     src/checkqueue.h \
@@ -230,7 +229,6 @@ SOURCES += src/qt/bitcoin.cpp \
     src/main.cpp \
     src/init.cpp \
     src/net.cpp \
-    src/irc.cpp \
     src/bloom.cpp \
     src/checkpoints.cpp \
     src/addrman.cpp \