Removed use of IsRunningOnIOS9OrLater from rtl_geometry.mm

ios/chrome/browser/ui/rtl_geometry.mm

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ios/chrome/browser/ui/rtl_geometry.h"
 
 #import <UIKit/UIKit.h>
 #include <limits>
 
-#include "base/ios/ios_util.h"
 #include "base/logging.h"
 #include "ios/chrome/browser/ui/ui_util.h"
 
 bool UseRTLLayout() {
-  return base::i18n::IsRTL() && base::ios::IsRunningOnIOS9OrLater();
+  return base::i18n::IsRTL();
 }
 
 base::i18n::TextDirection LayoutDirection() {
   return UseRTLLayout() ? base::i18n::RIGHT_TO_LEFT : base::i18n::LEFT_TO_RIGHT;
 }
 
 #pragma mark - LayoutRects.
 
 const LayoutRectPosition LayoutRectPositionZero = {0.0, 0.0};
 
@@ skipping 198 matching lines @@
 
 CGFloat CGRectGetLeadingEdge(CGRect rect) {
   return CGRectGetLeadingEdgeUsingDirection(rect, LayoutDirection());
 }
 
 CGFloat CGRectGetTrailingEdge(CGRect rect) {
   return CGRectGetTrailingEdgeUsingDirection(rect, LayoutDirection());
 }
 
 UIViewAutoresizing UIViewAutoresizingFlexibleLeadingMargin() {
-  return base::i18n::IsRTL() && base::ios::IsRunningOnIOS9OrLater()
-             ? UIViewAutoresizingFlexibleRightMargin
-             : UIViewAutoresizingFlexibleLeftMargin;
+  return base::i18n::IsRTL() ? UIViewAutoresizingFlexibleRightMargin
+                             : UIViewAutoresizingFlexibleLeftMargin;
 }
 
 UIViewAutoresizing UIViewAutoresizingFlexibleTrailingMargin() {
-  return base::i18n::IsRTL() && base::ios::IsRunningOnIOS9OrLater()
-             ? UIViewAutoresizingFlexibleLeftMargin
-             : UIViewAutoresizingFlexibleRightMargin;
+  return base::i18n::IsRTL() ? UIViewAutoresizingFlexibleLeftMargin
+                             : UIViewAutoresizingFlexibleRightMargin;
 }
 
 UIEdgeInsets UIEdgeInsetsMakeUsingDirection(
     CGFloat top,
     CGFloat leading,
     CGFloat bottom,
     CGFloat trailing,
     base::i18n::TextDirection direction) {
   if (direction == base::i18n::RIGHT_TO_LEFT) {
     using std::swap;
@@ skipping 20 matching lines @@
 }
 
 #pragma mark - autolayout utilities
 
 NSLayoutFormatOptions LayoutOptionForRTLSupport() {
   if (UseRTLLayout()) {
     return NSLayoutFormatDirectionLeadingToTrailing;
   }
   return NSLayoutFormatDirectionLeftToRight;
 }