Remove deprecated constructor in BitmapTransformation.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=179579673

Author: sjudd

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

@@ -81,15 +81,6 @@ public BitmapTransformation(@SuppressWarnings("unused") Context context) {
     this();
   }
 
-  /**
-   * @deprecated Use {@link #BitmapTransformation()}.
-   * @param bitmapPool Ignored.
-   */
-  @Deprecated
-  public BitmapTransformation(@SuppressWarnings("unused") BitmapPool bitmapPool) {
-    this();
-  }
-
   @NonNull
   @Override
   public final Resource<Bitmap> transform(