Revert "Fix view flicker when switching between keyboard and attachment/emoji keyboards."

This reverts commit 1618141342.

app/src/main/java/org/thoughtcrime/securesms/components/KeyboardAwareLinearLayout.java

@@ -107,6 +107,10 @@ public class KeyboardAwareLinearLayout extends LinearLayoutCompat {
   }
 
   private void updateKeyboardState() {
+    updateKeyboardState(Integer.MAX_VALUE);
+  }
+
+  private void updateKeyboardState(int previousHeight) {
     if (viewInset == 0 && Build.VERSION.SDK_INT >= 21) viewInset = getViewInset();
 
     getWindowVisibleDisplayFrame(rect);
@@ -126,7 +130,11 @@ public class KeyboardAwareLinearLayout extends LinearLayoutCompat {
         onKeyboardOpen(keyboardHeight);
       }
     } else if (keyboardOpen) {
-      onKeyboardClose();
+      if (previousHeight == keyboardHeight) {
+        onKeyboardClose();
+      } else {
+        postDelayed(() -> updateKeyboardState(keyboardHeight), 100);
+      }
     }
   }