Settings > Security: Remove useless imported code

Riot/Modules/Settings/Security/Security.storyboard

@@ -13,13 +13,13 @@
         <scene sceneID="KQ6-RY-1vS">
             <objects>
                 <tableViewController id="QHp-lE-M7m" customClass="SecurityViewController" sceneMemberID="viewController">
-                    <tableView key="view" clipsSubviews="YES" contentMode="scaleToFill" alwaysBounceVertical="YES" dataMode="prototypes" style="plain" separatorStyle="default" rowHeight="-1" estimatedRowHeight="-1" sectionHeaderHeight="28" sectionFooterHeight="28" id="Fpr-At-4Wb">
+                    <tableView key="view" clipsSubviews="YES" contentMode="scaleToFill" alwaysBounceVertical="YES" dataMode="prototypes" style="grouped" separatorStyle="default" rowHeight="-1" estimatedRowHeight="-1" sectionHeaderHeight="18" sectionFooterHeight="18" id="Fpr-At-4Wb">
                         <rect key="frame" x="0.0" y="0.0" width="414" height="896"/>
                         <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
-                        <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                        <color key="backgroundColor" cocoaTouchSystemColor="groupTableViewBackgroundColor"/>
                         <prototypes>
                             <tableViewCell clipsSubviews="YES" contentMode="scaleToFill" preservesSuperviewLayoutMargins="YES" selectionStyle="default" indentationWidth="10" id="JHA-Ac-OAZ">
-                                <rect key="frame" x="0.0" y="28" width="414" height="44"/>
+                                <rect key="frame" x="0.0" y="55.5" width="414" height="44"/>
                                 <autoresizingMask key="autoresizingMask"/>
                                 <tableViewCellContentView key="contentView" opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center" preservesSuperviewLayoutMargins="YES" insetsLayoutMarginsFromSafeArea="NO" tableViewCell="JHA-Ac-OAZ" id="Soh-58-aeC">
                                     <rect key="frame" x="0.0" y="0.0" width="414" height="43.5"/>

Riot/Modules/Settings/Security/SecurityViewController.h

@@ -1,5 +1,5 @@
 /*
- Copyright 2019 New Vector Ltd
+ Copyright 2020 New Vector Ltd
  
  Licensed under the Apache License, Version 2.0 (the "License");
  you may not use this file except in compliance with the License.