Fixing custom content screen not aligned properly in landscape

Bug: 26413100
Change-Id: I1a111c9d2b0dfdfbc3cbd566e5784a1ed2bb6719
diff --git a/src/com/android/launcher3/PagedView.java b/src/com/android/launcher3/PagedView.java
index b6d3cc4..900d5e8 100644
--- a/src/com/android/launcher3/PagedView.java
+++ b/src/com/android/launcher3/PagedView.java
@@ -819,7 +819,7 @@
                     childWidthMode = MeasureSpec.EXACTLY;
                     childHeightMode = MeasureSpec.EXACTLY;
 
-                    childWidth = getViewportWidth() - mInsets.left - mInsets.right;
+                    childWidth = getViewportWidth();
                     childHeight = getViewportHeight();
                 }
                 if (referenceChildWidth == 0) {