[gnome-themes-standard] Removed Metacity theme references.

[Juraj Fiala <jurf src gnome org>]

commit 0fb555d0bc1b78c7f208e7f4adcf65e35f72cfc3
Author: Juraj Fiala <doctorjellyface riseup net>
Date:   Fri Nov 25 19:45:00 2016 +0100

    Removed Metacity theme references.
    
    We don't have any Metacity themes anyway.

 themes/Adwaita-dark/index.theme.in |    1 -
 themes/Adwaita/index.theme.in      |    1 -
 themes/HighContrast/index.theme.in |    1 -
 3 files changed, 0 insertions(+), 3 deletions(-)
---
diff --git a/themes/Adwaita-dark/index.theme.in b/themes/Adwaita-dark/index.theme.in
index db2c591..c67c344 100644
--- a/themes/Adwaita-dark/index.theme.in
+++ b/themes/Adwaita-dark/index.theme.in
@@ -4,7 +4,6 @@ Type=X-GNOME-Metatheme
 _Comment=There was only one
 Encoding=UTF-8
 GtkTheme=Adwaita-dark
-MetacityTheme=Adwaita
 IconTheme=Adwaita
 CursorTheme=Adwaita
 CursorSize=24
diff --git a/themes/Adwaita/index.theme.in b/themes/Adwaita/index.theme.in
index 4cd0690..9247c25 100644
--- a/themes/Adwaita/index.theme.in
+++ b/themes/Adwaita/index.theme.in
@@ -4,7 +4,6 @@ Type=X-GNOME-Metatheme
 _Comment=There is only one
 Encoding=UTF-8
 GtkTheme=Adwaita
-MetacityTheme=Adwaita
 IconTheme=Adwaita
 CursorTheme=Adwaita
 CursorSize=24
diff --git a/themes/HighContrast/index.theme.in b/themes/HighContrast/index.theme.in
index b8f5f31..7d00333 100644
--- a/themes/HighContrast/index.theme.in
+++ b/themes/HighContrast/index.theme.in
@@ -4,7 +4,6 @@ Type=X-GNOME-Metatheme
 _Comment=High contrast theme
 Encoding=UTF-8
 GtkTheme=HighContrast
-MetacityTheme=HighContrast
 IconTheme=Adwaita
 CursorTheme=Adwaita
 CursorSize=24