[gdk-pixbuf] Remove win32/vs15/gdk-pixbuf-install.props before re-generation

[Chun-wei Fan <fanchunwei src gnome org>]

commit c7aff54862a26a38ec2b7d07e9e9b9b9f9bce037
Author: Chun-wei Fan <fanchunwei src gnome org>
Date:   Wed Feb 15 14:06:18 2017 +0800

    Remove win32/vs15/gdk-pixbuf-install.props before re-generation
    
    This will ensure that it is up-to-date when
    win32/vs10/gdk-pixbuf-install.props is re-generated.

 win32/vs10/Makefile.am |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/win32/vs10/Makefile.am b/win32/vs10/Makefile.am
index ed36818..84f29a6 100644
--- a/win32/vs10/Makefile.am
+++ b/win32/vs10/Makefile.am
@@ -27,6 +27,7 @@ gdk-pixbuf-install.props: $(top_srcdir)/win32/vs10/gdk-pixbuf-install.propsin gd
        -$(RM) $(top_builddir)/win32/vs11/gdk-pixbuf-install.props
        -$(RM) $(top_builddir)/win32/vs12/gdk-pixbuf-install.props
        -$(RM) $(top_builddir)/win32/vs14/gdk-pixbuf-install.props
+       -$(RM) $(top_builddir)/win32/vs15/gdk-pixbuf-install.props
        $(CPP) -P - <$(top_srcdir)/win32/vs10/gdk-pixbuf-install.propsin >$@
        rm gdk-pixbuf.vs10.headers