[glibmm] ustring: Remove unused template arguments

[Daniel Boles <dboles src gnome org>]

commit 3cfeb5af494b69e1cddc966f180ba72f5e07a537
Author: Daniel Boles <dboles src gnome org>
Date:   Thu Jul 6 21:30:26 2017 +0100

    ustring: Remove unused template arguments
    
    https://bugzilla.gnome.org/show_bug.cgi?id=784211

 glib/glibmm/ustring.h |    2 --
 1 files changed, 0 insertions(+), 2 deletions(-)
---
diff --git a/glib/glibmm/ustring.h b/glib/glibmm/ustring.h
index 4c686ff..7489126 100644
--- a/glib/glibmm/ustring.h
+++ b/glib/glibmm/ustring.h
@@ -646,7 +646,6 @@ public:
   /* Returns fmt as is, but checks for invalid references in the format string.
    * @newin{2,18}
    */
-  template <class T1>
   static inline ustring compose(const ustring& fmt);
 
   /*! Substitute placeholders in a format string with the referenced arguments.
@@ -1355,7 +1354,6 @@ public:
   inline const ustring* ptr() const { return &string_; }
 };
 
-template <class T1>
 inline // static
   ustring
   ustring::compose(const ustring& fmt)