dtprintinfo: make it build

Also, it was easier just to use a single Makefile.am rather than one for
every subdir, so thats what we did here.

cde/programs/dtprintinfo/libUI/Makefile.am

@@ -1,3 +0,0 @@
-MAINTAINERCLEANFILES = Makefile.in
-
-SUBDIRS = MotifUI

cde/programs/dtprintinfo/libUI/MotifUI/Makefile.am

@@ -1,16 +0,0 @@
-MAINTAINERCLEANFILES = Makefile.in
-
-noinst_LIBRARIES = libMotifUI.a
-
-libMotifUI_a_CXXFLAGS = -I.. -DKORNSHELL=\"$(KSH)\"
-
-if AIX
-libMotifUI_a_CXXFLAGS = -DHAS_EXCEPTIONS
-
-libMotifUI_a_SOURCES = Application.C   Button.C        ComboBoxObj.C \
-		       Container.C     Debug.c         Dialog.C \
-		       DtDND.C         Group.C         HelpSystem.C \
-		       Icon.c          IconObj.C       LabelObj.C \
-		       MainWindow.C    Menu.C          MenuBar.C \
-		       MotifThread.C   MotifUI.C       Prompt.C \
-		       ScaleObj.C      Sep.C           WorkArea.c