Remove X-GNOME-Bugzilla from *.desktop file

I think it's no longer useful, for example gnome-photos (a new GNOME
app) doesn't specify that.

It permits to simplify a little the build.

configure.ac

@@ -158,7 +158,6 @@ APPSTREAM_XML
 AC_CONFIG_FILES([
 	Makefile
 	data/Makefile
-	data/org.gnome.latexila.desktop.in
 	data/org.gnome.latexila.gschema.xml
 	data/build_tools/Makefile
 	data/icons/Makefile

data/Makefile.am

@@ -27,11 +27,10 @@ org.gnome.latexila.service: Makefile
 
 EXTRA_DIST =					\
 	org.gnome.latexila.appdata.xml.in	\
-	org.gnome.latexila.desktop.in.in	\
+	org.gnome.latexila.desktop.in		\
 	org.gnome.latexila.gschema.xml.in
 
 DISTCLEANFILES =			\
-	org.gnome.latexila.desktop.in	\
 	org.gnome.latexila.gschema.xml
 
 CLEANFILES =				\

data/org.gnome.latexila.desktop.in.in → data/org.gnome.latexila.desktop.in

@@ -13,11 +13,6 @@ MimeType=text/x-tex;
 DBusActivatable=true
 Actions=new-window;new-document;
 
-X-GNOME-Bugzilla-Bugzilla=GNOME
-X-GNOME-Bugzilla-Product=latexila
-X-GNOME-Bugzilla-Component=other
-X-GNOME-Bugzilla-Version=@VERSION@
-
 [Desktop Action new-window]
 _Name=Open a New Window
 Exec=latexila --new-window

po/POTFILES.in

@@ -3,7 +3,7 @@
 [encoding: UTF-8]
 data/build_tools/build_tools.pot
 data/org.gnome.latexila.appdata.xml.in
-data/org.gnome.latexila.desktop.in.in
+data/org.gnome.latexila.desktop.in
 [type: gettext/gsettings]data/org.gnome.latexila.gschema.xml.in
 data/templates/templates.pot
 src/app_settings.vala

po/POTFILES.skip

 # List of source files that should *not* be translated.
 # Please keep this file sorted alphabetically.
-data/org.gnome.latexila.desktop.in
 src/app_settings.c
 src/bottom_panel.c
 src/build_tool_dialog.c
@@ -47,4 +46,3 @@ src/tab_label.c
 src/templates.c
 src/templates_dialogs.c
 src/utils.c
-sub/data/org.gnome.latexila.desktop.in