[geary] Remove unused message.glade UI file and references to it.

[Adam Dingle <adamd src gnome org>]

commit 298fa60d1f97e1819f656ebc2c2a941f14fc9dc8
Author: Michael James Gratton <mike vee net>
Date:   Sun Apr 3 19:15:14 2016 +1000

    Remove unused message.glade UI file and references to it.

 po/POTFILES.in    |    1 -
 ui/CMakeLists.txt |    1 -
 ui/message.glade  |   81 -----------------------------------------------------
 3 files changed, 0 insertions(+), 83 deletions(-)
---
diff --git a/po/POTFILES.in b/po/POTFILES.in
index f18a0f7..8f0beae 100644
--- a/po/POTFILES.in
+++ b/po/POTFILES.in
@@ -386,7 +386,6 @@ src/mailer/main.vala
 [type: gettext/glade]ui/edit_alternate_emails.glade
 [type: gettext/glade]ui/find_bar.glade
 [type: gettext/glade]ui/login.glade
-[type: gettext/glade]ui/message.glade
 [type: gettext/glade]ui/password-dialog.glade
 [type: gettext/glade]ui/preferences.glade
 [type: gettext/glade]ui/remove_confirm.glade
diff --git a/ui/CMakeLists.txt b/ui/CMakeLists.txt
index 48d1048..dc18fb6 100644
--- a/ui/CMakeLists.txt
+++ b/ui/CMakeLists.txt
@@ -11,7 +11,6 @@ install(FILES composer_accelerators.ui DESTINATION ${UI_DEST})
 install(FILES edit_alternate_emails.glade DESTINATION ${UI_DEST})
 install(FILES find_bar.glade DESTINATION ${UI_DEST})
 install(FILES login.glade DESTINATION ${UI_DEST})
-install(FILES message.glade DESTINATION ${UI_DEST})
 install(FILES password-dialog.glade DESTINATION ${UI_DEST})
 install(FILES preferences.glade DESTINATION ${UI_DEST})
 install(FILES remove_confirm.glade DESTINATION ${UI_DEST})