Remove unused CPPFLAGS pointing to "ext".

And removed unneeded SUBDIRS.


git-svn-id: svn://bind10.isc.org/svn/bind10/trunk@2043 e5f2f494-b856-4b98-b285-d166d9295462

src/lib/cc/Makefile.am

@@ -1,6 +1,5 @@
 AM_CPPFLAGS = -I$(top_srcdir)/src/lib -I$(top_builddir)/src/lib
 AM_CPPFLAGS += -I$(top_srcdir)/src/lib/dns -I$(top_builddir)/src/lib/dns
-AM_CPPFLAGS += -I$(top_srcdir)/ext
 
 AM_CXXFLAGS = $(B10_CXXFLAGS)
 # ASIO header files used in session.cc will trigger "unused-parameter"

src/lib/xfr/Makefile.am

@@ -1,8 +1,5 @@
-SUBDIRS = . 
-
 AM_CPPFLAGS = -I$(top_srcdir)/src/lib -I$(top_builddir)/src/lib
 AM_CPPFLAGS += -I$(top_srcdir)/src/lib/dns -I$(top_builddir)/src/lib/dns
-AM_CPPFLAGS += -I$(top_srcdir)/ext
 
 AM_CXXFLAGS = $(B10_CXXFLAGS) -Wno-strict-aliasing
 AM_CXXFLAGS += -Wno-unused-parameter # see src/lib/cc/Makefile.am