remove all xml++.h inclusion by canvas implementations

libs/canvas/canvas.cc

@@ -26,7 +26,6 @@
 #include <gtkmm/adjustment.h>
 #include <gtkmm/label.h>
 
-#include "pbd/xml++.h"
 #include "pbd/compose.h"
 #include "pbd/stacktrace.h"
 

libs/canvas/curve.cc

@@ -20,8 +20,6 @@
 #include <exception>
 #include <algorithm>
 
-#include "pbd/xml++.h"
-
 #include "canvas/curve.h"
 
 using namespace ArdourCanvas;

libs/canvas/fill.cc

@@ -1,6 +1,5 @@
 #include "ardour/utils.h"
 
-#include "pbd/xml++.h"
 #include "pbd/compose.h"
 #include "pbd/convert.h"
 

libs/canvas/group.cc

@@ -3,7 +3,6 @@
 
 #include "pbd/stacktrace.h"
 #include "pbd/compose.h"
-#include "pbd/xml++.h"
 
 #include "canvas/group.h"
 #include "canvas/types.h"

libs/canvas/image.cc

@@ -2,8 +2,6 @@
 
 #include "gtkmm2ext/gui_thread.h"
 
-#include "pbd/xml++.h"
-
 using namespace ArdourCanvas;
 
 Image::Image (Group* group, Cairo::Format fmt, int width, int height)

libs/canvas/item.cc

@@ -1,6 +1,5 @@
 #include "pbd/compose.h"
 #include "pbd/stacktrace.h"
-#include "pbd/xml++.h"
 #include "pbd/convert.h"
 
 #include "ardour/utils.h"

libs/canvas/line.cc

@@ -1,6 +1,5 @@
 #include <algorithm>
 #include <cairomm/context.h>
-#include "pbd/xml++.h"
 #include "pbd/compose.h"
 #include "canvas/line.h"
 #include "canvas/types.h"

libs/canvas/line_set.cc

@@ -1,4 +1,3 @@
-#include "pbd/xml++.h"
 #include "canvas/line_set.h"
 #include "canvas/utils.h"
 

libs/canvas/outline.cc

@@ -1,6 +1,5 @@
 #include <cairomm/context.h>
 
-#include "pbd/xml++.h"
 #include "pbd/compose.h"
 #include "pbd/convert.h"
 

libs/canvas/pixbuf.cc

@@ -1,8 +1,6 @@
 #include <cairomm/cairomm.h>
 #include <gdkmm/general.h>
 
-#include "pbd/xml++.h"
-
 #include "canvas/pixbuf.h"
 
 using namespace std;

libs/canvas/poly_item.cc

@@ -1,6 +1,5 @@
 #include <algorithm>
 
-#include "pbd/xml++.h"
 #include "pbd/compose.h"
 
 #include "canvas/poly_item.h"

libs/canvas/poly_line.cc

@@ -1,4 +1,3 @@
-#include "pbd/xml++.h"
 #include "canvas/poly_line.h"
 
 using namespace ArdourCanvas;

libs/canvas/polygon.cc

@@ -1,4 +1,3 @@
-#include "pbd/xml++.h"
 #include "canvas/polygon.h"
 
 using namespace ArdourCanvas;

libs/canvas/rectangle.cc

@@ -1,7 +1,6 @@
 #include <iostream>
 #include <cairomm/context.h>
 #include "pbd/stacktrace.h"
-#include "pbd/xml++.h"
 #include "pbd/compose.h"
 #include "canvas/rectangle.h"
 #include "canvas/debug.h"

libs/canvas/text.cc

@@ -3,7 +3,6 @@
 #include <cairomm/cairomm.h>
 #include <gtkmm/label.h>
 
-#include "pbd/xml++.h"
 #include "pbd/stacktrace.h"
 
 #include "canvas/text.h"