[calls] new-call-box: Remove unnecessary GtkBox

[Evangelos Ribeiro Tzaras <devrtz src gnome org>]

commit c61d63383f31e5936126ba55238f2df65fb96d1f
Author: Evangelos Ribeiro Tzaras <devrtz fortysixandtwo eu>
Date:   Sun Jul 18 12:50:50 2021 +0200

    new-call-box: Remove unnecessary GtkBox

 src/ui/new-call-box.ui | 27 ++++++++-------------------
 1 file changed, 8 insertions(+), 19 deletions(-)
---
diff --git a/src/ui/new-call-box.ui b/src/ui/new-call-box.ui
index 4dd0a7fc..de569a31 100644
--- a/src/ui/new-call-box.ui
+++ b/src/ui/new-call-box.ui
@@ -27,27 +27,16 @@
     </child>
 
     <child>
-      <object class="GtkBox">
+      <object class="GtkEntry" id="keypad_entry">
         <property name="visible">True</property>
-        <property name="can_focus">False</property>
-        <property name="orientation">horizontal</property>
-        <child>
-          <object class="GtkEntry" id="keypad_entry">
-            <property name="visible">True</property>
-            <property name="can_focus">True</property>
-            <property name="hexpand">True</property>
-            <property name="xalign">0.5</property>
-            <property name="margin_right">6</property>
-            <style>
-              <class name="phone-number-entry"/>
-            </style>
-          </object>
-        </child>
+        <property name="can_focus">True</property>
+        <property name="hexpand">True</property>
+        <property name="xalign">0.5</property>
+        <property name="margin_right">6</property>
+        <style>
+          <class name="phone-number-entry"/>
+        </style>
       </object>
-      <packing>
-        <property name="expand">False</property>
-        <property name="fill">True</property>
-      </packing>
     </child>
     <child>
       <object class="HdyKeypad" id="keypad">