Fix divider dismiss position wrong on potrait

When we calculate dismiss target, it will deduce nav bar size from
total height. Remove this rule to make divider always move to end
of screen.

Fix: 232858513
Test: manual
Test: pass existing tests
Change-Id: I34cf12f242daa31bd4dd7d4b202fc43ac0d752b4

core/java/com/android/internal/policy/DividerSnapAlgorithm.java

@@ -287,7 +287,6 @@ public class DividerSnapAlgorithm {
         int dividerMax = isHorizontalDivision
                 ? mDisplayHeight
                 : mDisplayWidth;
-        int navBarSize = isHorizontalDivision ? mInsets.bottom : mInsets.right;
         int startPos = -mDividerSize;
         if (dockedSide == DOCKED_RIGHT) {
             startPos += mInsets.left;
@@ -308,8 +307,7 @@ public class DividerSnapAlgorithm {
                 addMinimizedTarget(isHorizontalDivision, dockedSide);
                 break;
         }
-        mTargets.add(new SnapTarget(dividerMax - navBarSize, dividerMax,
-                SnapTarget.FLAG_DISMISS_END, 0.35f));
+        mTargets.add(new SnapTarget(dividerMax, dividerMax, SnapTarget.FLAG_DISMISS_END, 0.35f));
     }
 
     private void addNonDismissingTargets(boolean isHorizontalDivision, int topPosition,