[adwaita-icon-theme] Drop unneeded gtk-update-icon-cache dep

[Kalev Lember]

commit 3ab818ae66897e4be604dea908779c4133684880
Author: Kalev Lember <kalevlember at gmail.com>
Date:   Sat Feb 21 14:57:39 2015 +0100

    Drop unneeded gtk-update-icon-cache dep
    
    After upstream commit 3227136e998ea655ed7d2b6b0be5909f6608da7b, the
    build no longer requires gtk-update-icon-cache.

 adwaita-icon-theme.spec | 1 -
 1 file changed, 1 deletion(-)
---
diff --git a/adwaita-icon-theme.spec b/adwaita-icon-theme.spec
index 86bce02..e6f59d0 100644
--- a/adwaita-icon-theme.spec
+++ b/adwaita-icon-theme.spec
@@ -17,7 +17,6 @@ BuildRequires:  librsvg2
 %if ! 0%{bootstrap}
 BuildRequires:  /usr/bin/gtk-encode-symbolic-svg
 %endif
-BuildRequires:  /usr/bin/gtk-update-icon-cache
 
 Requires:       adwaita-cursor-theme = %{version}-%{release}