Remove the remaining Makefiles from the code.

simgear/props/Makefile.am

@@ -1,48 +0,0 @@
-includedir = @includedir@/props
-
-lib_LIBRARIES = libsgprops.a
-
-include_HEADERS = \
-	condition.hxx \
-	props.hxx \
-	props_io.hxx \
-	propsfwd.hxx \
-	AtomicChangeListener.hxx \
-	ExtendedPropertyAdapter.hxx \
-	propertyObject.hxx \
-	tiedpropertylist.hxx
-
-libsgprops_a_SOURCES = \
-	condition.cxx \
-	props.cxx \
-	props_io.cxx \
-	AtomicChangeListener.cxx \
-	propertyObject.cxx
-
-check_PROGRAMS = props_test propertyObject_test
-TESTS           = propertyObject_test
-
-props_test_SOURCES = props_test.cxx
-props_test_LDADD = \
-	libsgprops.a \
-	$(top_builddir)/simgear/xml/libsgxml.a \
-	$(top_builddir)/simgear/misc/libsgmisc.a \
-	$(top_builddir)/simgear/debug/libsgdebug.a \
-	$(top_builddir)/simgear/structure/libsgstructure.a
-
-propertyObject_test_SOURCES = propertyObject_test.cxx
-propertyObject_test_LDADD = \
-	libsgprops.a \
-	$(top_builddir)/simgear/xml/libsgxml.a \
-	$(top_builddir)/simgear/misc/libsgmisc.a \
-	$(top_builddir)/simgear/debug/libsgdebug.a \
-	$(top_builddir)/simgear/structure/libsgstructure.a
-
-
-if HAVE_FRAMEWORK_OSG
-props_test_LDFLAGS = $(openthreads_FRAMEWORK)
-else
-props_test_LDFLAGS = -lOpenThreads
-endif
-
-INCLUDES = -I$(top_srcdir)