[gnome-control-center] Remove no longer necessary contexts from translatable strings

[Piotr Drąg <piotrdrag src gnome org>]

commit 555e230508d92aa01b563e4b8da87c08aa1ffed2
Author: Piotr Drąg <piotrdrag gmail com>
Date:   Sun Feb 12 16:02:22 2017 +0100

    Remove no longer necessary contexts from translatable strings
    
    These strings changed recently and now their contexts don't disambiguate
    anything.

 panels/keyboard/shortcut-editor.ui |    2 +-
 panels/printers/printers.ui        |    2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/panels/keyboard/shortcut-editor.ui b/panels/keyboard/shortcut-editor.ui
index ac0f01b..5e8af7a 100644
--- a/panels/keyboard/shortcut-editor.ui
+++ b/panels/keyboard/shortcut-editor.ui
@@ -254,7 +254,7 @@
                       <object class="GtkButton" id="change_custom_shortcut_button">
                         <property name="visible">True</property>
                         <property name="can_focus">False</property>
-                        <property name="label" translatable="yes" context="button">Set Shortcut…</property>
+                        <property name="label" translatable="yes">Set Shortcut…</property>
                         <signal name="clicked" handler="change_custom_shortcut_button_clicked_cb" 
object="CcKeyboardShortcutEditor" swapped="yes" />
                       </object>
                       <packing>
diff --git a/panels/printers/printers.ui b/panels/printers/printers.ui
index d5bf2e6..f863d92 100644
--- a/panels/printers/printers.ui
+++ b/panels/printers/printers.ui
@@ -17,7 +17,7 @@
         <property name="visible">True</property>
         <property name="sensitive">True</property>
         <property name="use_underline">True</property>
-        <property name="label" translatable="yes" context="button" comments="Translators: This button adds 
new printer.">Add</property>
+        <property name="label" translatable="yes" comments="Translators: This button adds new 
printer.">Add</property>
         <style>
           <class name="suggested-action"/>
         </style>