Remove debug logs

Test: presubmit
Bug: none
Change-Id: I3ad5f82a83664c4c42603b0030f809ad797ffd29

services/core/java/com/android/server/wm/DisplayContent.java

@@ -4808,10 +4808,8 @@ class DisplayContent extends WindowContainer<DisplayContent.DisplayChildWindowCo
             } else {
                 final int count = mChildren.size();
                 for (int i = 0; i < count; i++) {
-                    Slog.d(TAG, "child " + mChildren.get(i));
                     final WindowContainer child = mChildren.get(i);
                     if (skipTraverseChild(child)) {
-                        Slog.d(TAG, "child skipped");
                         continue;
                     }