Remove a deprecated constructor in CircleCrop

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=178191526

Author: sjudd

library/src/main/java/com/bumptech/glide/load/resource/bitmap/CircleCrop.java

@@ -32,15 +32,6 @@ public CircleCrop(@SuppressWarnings("unused") Context context) {
     this();
   }
 
-  /**
-   * @deprecated Use {@link #CircleCrop()}
-   * @param bitmapPool Ignored.
-   */
-  @Deprecated
-  public CircleCrop(@SuppressWarnings("unused") BitmapPool bitmapPool) {
-    this();
-  }
-
   // Bitmap doesn't implement equals, so == and .equals are equivalent here.
   @SuppressWarnings("PMD.CompareObjectsWithEquals")
   @Override