Fix attachments close button look

Rotating the attachments button to get a close button does not work
for us

Change-Id: I893a06d0671f75626229e71037f0b6bee774a74c

vector/src/main/java/im/vector/app/features/attachments/AttachmentTypeSelectorView.kt

@@ -88,15 +88,19 @@ class AttachmentTypeSelectorView(context: Context,
     }
 
     private fun animateOpen() {
+        /*
         views.attachmentCloseButton.animate()
                 .setDuration(200)
                 .rotation(135f)
+         */
     }
 
     private fun animateClose() {
+        /*
         views.attachmentCloseButton.animate()
                 .setDuration(200)
                 .rotation(0f)
+         */
     }
 
     fun show(anchor: View) {

vector/src/main/res/layout/view_attachment_type_selector.xml

@@ -13,11 +13,11 @@
         android:layout_margin="@dimen/composer_attachment_margin"
         android:background="@null"
         android:contentDescription="@string/action_close"
-        android:src="@drawable/ic_attachment"
+        android:src="@drawable/ic_close_24dp"
+        app:tint="?vctr_content_secondary"
         app:layout_constraintBottom_toBottomOf="parent"
         app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toTopOf="parent"
-        tools:rotation="135" />
+        app:layout_constraintTop_toTopOf="parent" />
 
     <HorizontalScrollView
         android:layout_width="0dp"